diff --git a/labs05/pandas_wprowadzenie.ipynb b/labs05/pandas_wprowadzenie.ipynb
new file mode 100644
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--- /dev/null
+++ b/labs05/pandas_wprowadzenie.ipynb
@@ -0,0 +1,2309 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "# Analiza danych w Pythonie\n",
+    "\n",
+    "### Tomasz Dwojak\n",
+    "\n",
+    "### 3 czerwca 2018"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "### Analiza danych:\n",
+    "\n",
+    " * R\n",
+    " * Python"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "### Python Ekosystem\n",
+    "\n",
+    " * pandas: ramka danych\n",
+    " * sklearn: modele ML\n",
+    " * numpy: obliczenia\n",
+    " * matplotlib: wykresy"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "skip"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "%matplotlib inline"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "import pandas as pd"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "### Typy danych\n",
+    "\n",
+    " * Szereg (`pd.Series`)\n",
+    " * Ramka danych (`pd.DataFrame`)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "### Wczytanie danych"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "data = pd.read_csv(\"./data/iowa.csv.gz\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Id</th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>MSZoning</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>LotArea</th>\n",
+       "      <th>Street</th>\n",
+       "      <th>Alley</th>\n",
+       "      <th>LotShape</th>\n",
+       "      <th>LandContour</th>\n",
+       "      <th>Utilities</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PoolArea</th>\n",
+       "      <th>PoolQC</th>\n",
+       "      <th>Fence</th>\n",
+       "      <th>MiscFeature</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SaleType</th>\n",
+       "      <th>SaleCondition</th>\n",
+       "      <th>SalePrice</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>1</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>65.0</td>\n",
+       "      <td>8450</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>208500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>80.0</td>\n",
+       "      <td>9600</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>2007</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>181500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>3</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>68.0</td>\n",
+       "      <td>11250</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>9</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>223500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>4</td>\n",
+       "      <td>70</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>60.0</td>\n",
+       "      <td>9550</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2006</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Abnorml</td>\n",
+       "      <td>140000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>5</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>84.0</td>\n",
+       "      <td>14260</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>250000</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>5 rows × 81 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   Id  MSSubClass MSZoning  LotFrontage  LotArea Street Alley LotShape  \\\n",
+       "0   1          60       RL         65.0     8450   Pave   NaN      Reg   \n",
+       "1   2          20       RL         80.0     9600   Pave   NaN      Reg   \n",
+       "2   3          60       RL         68.0    11250   Pave   NaN      IR1   \n",
+       "3   4          70       RL         60.0     9550   Pave   NaN      IR1   \n",
+       "4   5          60       RL         84.0    14260   Pave   NaN      IR1   \n",
+       "\n",
+       "  LandContour Utilities    ...     PoolArea PoolQC Fence MiscFeature MiscVal  \\\n",
+       "0         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "1         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "2         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "3         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "4         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "\n",
+       "  MoSold YrSold  SaleType  SaleCondition  SalePrice  \n",
+       "0      2   2008        WD         Normal     208500  \n",
+       "1      5   2007        WD         Normal     181500  \n",
+       "2      9   2008        WD         Normal     223500  \n",
+       "3      2   2006        WD        Abnorml     140000  \n",
+       "4     12   2008        WD         Normal     250000  \n",
+       "\n",
+       "[5 rows x 81 columns]"
+      ]
+     },
+     "execution_count": 6,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.head()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "(1460, 81)\n"
+     ]
+    }
+   ],
+   "source": [
+    "shape = data.shape\n",
+    "rows = shape[0]\n",
+    "cols = shape[1]\n",
+    "\n",
+    "print(rows, cols)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "<class 'pandas.core.frame.DataFrame'>\n",
+      "RangeIndex: 1460 entries, 0 to 1459\n",
+      "Data columns (total 81 columns):\n",
+      "Id               1460 non-null int64\n",
+      "MSSubClass       1460 non-null int64\n",
+      "MSZoning         1460 non-null object\n",
+      "LotFrontage      1201 non-null float64\n",
+      "LotArea          1460 non-null int64\n",
+      "Street           1460 non-null object\n",
+      "Alley            91 non-null object\n",
+      "LotShape         1460 non-null object\n",
+      "LandContour      1460 non-null object\n",
+      "Utilities        1460 non-null object\n",
+      "LotConfig        1460 non-null object\n",
+      "LandSlope        1460 non-null object\n",
+      "Neighborhood     1460 non-null object\n",
+      "Condition1       1460 non-null object\n",
+      "Condition2       1460 non-null object\n",
+      "BldgType         1460 non-null object\n",
+      "HouseStyle       1460 non-null object\n",
+      "OverallQual      1460 non-null int64\n",
+      "OverallCond      1460 non-null int64\n",
+      "YearBuilt        1460 non-null int64\n",
+      "YearRemodAdd     1460 non-null int64\n",
+      "RoofStyle        1460 non-null object\n",
+      "RoofMatl         1460 non-null object\n",
+      "Exterior1st      1460 non-null object\n",
+      "Exterior2nd      1460 non-null object\n",
+      "MasVnrType       1452 non-null object\n",
+      "MasVnrArea       1452 non-null float64\n",
+      "ExterQual        1460 non-null object\n",
+      "ExterCond        1460 non-null object\n",
+      "Foundation       1460 non-null object\n",
+      "BsmtQual         1423 non-null object\n",
+      "BsmtCond         1423 non-null object\n",
+      "BsmtExposure     1422 non-null object\n",
+      "BsmtFinType1     1423 non-null object\n",
+      "BsmtFinSF1       1460 non-null int64\n",
+      "BsmtFinType2     1422 non-null object\n",
+      "BsmtFinSF2       1460 non-null int64\n",
+      "BsmtUnfSF        1460 non-null int64\n",
+      "TotalBsmtSF      1460 non-null int64\n",
+      "Heating          1460 non-null object\n",
+      "HeatingQC        1460 non-null object\n",
+      "CentralAir       1460 non-null object\n",
+      "Electrical       1459 non-null object\n",
+      "1stFlrSF         1460 non-null int64\n",
+      "2ndFlrSF         1460 non-null int64\n",
+      "LowQualFinSF     1460 non-null int64\n",
+      "GrLivArea        1460 non-null int64\n",
+      "BsmtFullBath     1460 non-null int64\n",
+      "BsmtHalfBath     1460 non-null int64\n",
+      "FullBath         1460 non-null int64\n",
+      "HalfBath         1460 non-null int64\n",
+      "BedroomAbvGr     1460 non-null int64\n",
+      "KitchenAbvGr     1460 non-null int64\n",
+      "KitchenQual      1460 non-null object\n",
+      "TotRmsAbvGrd     1460 non-null int64\n",
+      "Functional       1460 non-null object\n",
+      "Fireplaces       1460 non-null int64\n",
+      "FireplaceQu      770 non-null object\n",
+      "GarageType       1379 non-null object\n",
+      "GarageYrBlt      1379 non-null float64\n",
+      "GarageFinish     1379 non-null object\n",
+      "GarageCars       1460 non-null int64\n",
+      "GarageArea       1460 non-null int64\n",
+      "GarageQual       1379 non-null object\n",
+      "GarageCond       1379 non-null object\n",
+      "PavedDrive       1460 non-null object\n",
+      "WoodDeckSF       1460 non-null int64\n",
+      "OpenPorchSF      1460 non-null int64\n",
+      "EnclosedPorch    1460 non-null int64\n",
+      "3SsnPorch        1460 non-null int64\n",
+      "ScreenPorch      1460 non-null int64\n",
+      "PoolArea         1460 non-null int64\n",
+      "PoolQC           7 non-null object\n",
+      "Fence            281 non-null object\n",
+      "MiscFeature      54 non-null object\n",
+      "MiscVal          1460 non-null int64\n",
+      "MoSold           1460 non-null int64\n",
+      "YrSold           1460 non-null int64\n",
+      "SaleType         1460 non-null object\n",
+      "SaleCondition    1460 non-null object\n",
+      "SalePrice        1460 non-null int64\n",
+      "dtypes: float64(3), int64(35), object(43)\n",
+      "memory usage: 924.0+ KB\n"
+     ]
+    }
+   ],
+   "source": [
+    "data.info()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Id</th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>LotArea</th>\n",
+       "      <th>OverallQual</th>\n",
+       "      <th>OverallCond</th>\n",
+       "      <th>YearBuilt</th>\n",
+       "      <th>YearRemodAdd</th>\n",
+       "      <th>MasVnrArea</th>\n",
+       "      <th>BsmtFinSF1</th>\n",
+       "      <th>...</th>\n",
+       "      <th>WoodDeckSF</th>\n",
+       "      <th>OpenPorchSF</th>\n",
+       "      <th>EnclosedPorch</th>\n",
+       "      <th>3SsnPorch</th>\n",
+       "      <th>ScreenPorch</th>\n",
+       "      <th>PoolArea</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SalePrice</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>count</th>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1201.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1452.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>...</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>1460.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>mean</th>\n",
+       "      <td>730.500000</td>\n",
+       "      <td>56.897260</td>\n",
+       "      <td>70.049958</td>\n",
+       "      <td>10516.828082</td>\n",
+       "      <td>6.099315</td>\n",
+       "      <td>5.575342</td>\n",
+       "      <td>1971.267808</td>\n",
+       "      <td>1984.865753</td>\n",
+       "      <td>103.685262</td>\n",
+       "      <td>443.639726</td>\n",
+       "      <td>...</td>\n",
+       "      <td>94.244521</td>\n",
+       "      <td>46.660274</td>\n",
+       "      <td>21.954110</td>\n",
+       "      <td>3.409589</td>\n",
+       "      <td>15.060959</td>\n",
+       "      <td>2.758904</td>\n",
+       "      <td>43.489041</td>\n",
+       "      <td>6.321918</td>\n",
+       "      <td>2007.815753</td>\n",
+       "      <td>180921.195890</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>std</th>\n",
+       "      <td>421.610009</td>\n",
+       "      <td>42.300571</td>\n",
+       "      <td>24.284752</td>\n",
+       "      <td>9981.264932</td>\n",
+       "      <td>1.382997</td>\n",
+       "      <td>1.112799</td>\n",
+       "      <td>30.202904</td>\n",
+       "      <td>20.645407</td>\n",
+       "      <td>181.066207</td>\n",
+       "      <td>456.098091</td>\n",
+       "      <td>...</td>\n",
+       "      <td>125.338794</td>\n",
+       "      <td>66.256028</td>\n",
+       "      <td>61.119149</td>\n",
+       "      <td>29.317331</td>\n",
+       "      <td>55.757415</td>\n",
+       "      <td>40.177307</td>\n",
+       "      <td>496.123024</td>\n",
+       "      <td>2.703626</td>\n",
+       "      <td>1.328095</td>\n",
+       "      <td>79442.502883</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>min</th>\n",
+       "      <td>1.000000</td>\n",
+       "      <td>20.000000</td>\n",
+       "      <td>21.000000</td>\n",
+       "      <td>1300.000000</td>\n",
+       "      <td>1.000000</td>\n",
+       "      <td>1.000000</td>\n",
+       "      <td>1872.000000</td>\n",
+       "      <td>1950.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>1.000000</td>\n",
+       "      <td>2006.000000</td>\n",
+       "      <td>34900.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>25%</th>\n",
+       "      <td>365.750000</td>\n",
+       "      <td>20.000000</td>\n",
+       "      <td>59.000000</td>\n",
+       "      <td>7553.500000</td>\n",
+       "      <td>5.000000</td>\n",
+       "      <td>5.000000</td>\n",
+       "      <td>1954.000000</td>\n",
+       "      <td>1967.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>5.000000</td>\n",
+       "      <td>2007.000000</td>\n",
+       "      <td>129975.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>50%</th>\n",
+       "      <td>730.500000</td>\n",
+       "      <td>50.000000</td>\n",
+       "      <td>69.000000</td>\n",
+       "      <td>9478.500000</td>\n",
+       "      <td>6.000000</td>\n",
+       "      <td>5.000000</td>\n",
+       "      <td>1973.000000</td>\n",
+       "      <td>1994.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>383.500000</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>25.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>6.000000</td>\n",
+       "      <td>2008.000000</td>\n",
+       "      <td>163000.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>75%</th>\n",
+       "      <td>1095.250000</td>\n",
+       "      <td>70.000000</td>\n",
+       "      <td>80.000000</td>\n",
+       "      <td>11601.500000</td>\n",
+       "      <td>7.000000</td>\n",
+       "      <td>6.000000</td>\n",
+       "      <td>2000.000000</td>\n",
+       "      <td>2004.000000</td>\n",
+       "      <td>166.000000</td>\n",
+       "      <td>712.250000</td>\n",
+       "      <td>...</td>\n",
+       "      <td>168.000000</td>\n",
+       "      <td>68.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>8.000000</td>\n",
+       "      <td>2009.000000</td>\n",
+       "      <td>214000.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>max</th>\n",
+       "      <td>1460.000000</td>\n",
+       "      <td>190.000000</td>\n",
+       "      <td>313.000000</td>\n",
+       "      <td>215245.000000</td>\n",
+       "      <td>10.000000</td>\n",
+       "      <td>9.000000</td>\n",
+       "      <td>2010.000000</td>\n",
+       "      <td>2010.000000</td>\n",
+       "      <td>1600.000000</td>\n",
+       "      <td>5644.000000</td>\n",
+       "      <td>...</td>\n",
+       "      <td>857.000000</td>\n",
+       "      <td>547.000000</td>\n",
+       "      <td>552.000000</td>\n",
+       "      <td>508.000000</td>\n",
+       "      <td>480.000000</td>\n",
+       "      <td>738.000000</td>\n",
+       "      <td>15500.000000</td>\n",
+       "      <td>12.000000</td>\n",
+       "      <td>2010.000000</td>\n",
+       "      <td>755000.000000</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>8 rows × 38 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                Id   MSSubClass  LotFrontage        LotArea  OverallQual  \\\n",
+       "count  1460.000000  1460.000000  1201.000000    1460.000000  1460.000000   \n",
+       "mean    730.500000    56.897260    70.049958   10516.828082     6.099315   \n",
+       "std     421.610009    42.300571    24.284752    9981.264932     1.382997   \n",
+       "min       1.000000    20.000000    21.000000    1300.000000     1.000000   \n",
+       "25%     365.750000    20.000000    59.000000    7553.500000     5.000000   \n",
+       "50%     730.500000    50.000000    69.000000    9478.500000     6.000000   \n",
+       "75%    1095.250000    70.000000    80.000000   11601.500000     7.000000   \n",
+       "max    1460.000000   190.000000   313.000000  215245.000000    10.000000   \n",
+       "\n",
+       "       OverallCond    YearBuilt  YearRemodAdd   MasVnrArea   BsmtFinSF1  \\\n",
+       "count  1460.000000  1460.000000   1460.000000  1452.000000  1460.000000   \n",
+       "mean      5.575342  1971.267808   1984.865753   103.685262   443.639726   \n",
+       "std       1.112799    30.202904     20.645407   181.066207   456.098091   \n",
+       "min       1.000000  1872.000000   1950.000000     0.000000     0.000000   \n",
+       "25%       5.000000  1954.000000   1967.000000     0.000000     0.000000   \n",
+       "50%       5.000000  1973.000000   1994.000000     0.000000   383.500000   \n",
+       "75%       6.000000  2000.000000   2004.000000   166.000000   712.250000   \n",
+       "max       9.000000  2010.000000   2010.000000  1600.000000  5644.000000   \n",
+       "\n",
+       "           ...         WoodDeckSF  OpenPorchSF  EnclosedPorch    3SsnPorch  \\\n",
+       "count      ...        1460.000000  1460.000000    1460.000000  1460.000000   \n",
+       "mean       ...          94.244521    46.660274      21.954110     3.409589   \n",
+       "std        ...         125.338794    66.256028      61.119149    29.317331   \n",
+       "min        ...           0.000000     0.000000       0.000000     0.000000   \n",
+       "25%        ...           0.000000     0.000000       0.000000     0.000000   \n",
+       "50%        ...           0.000000    25.000000       0.000000     0.000000   \n",
+       "75%        ...         168.000000    68.000000       0.000000     0.000000   \n",
+       "max        ...         857.000000   547.000000     552.000000   508.000000   \n",
+       "\n",
+       "       ScreenPorch     PoolArea       MiscVal       MoSold       YrSold  \\\n",
+       "count  1460.000000  1460.000000   1460.000000  1460.000000  1460.000000   \n",
+       "mean     15.060959     2.758904     43.489041     6.321918  2007.815753   \n",
+       "std      55.757415    40.177307    496.123024     2.703626     1.328095   \n",
+       "min       0.000000     0.000000      0.000000     1.000000  2006.000000   \n",
+       "25%       0.000000     0.000000      0.000000     5.000000  2007.000000   \n",
+       "50%       0.000000     0.000000      0.000000     6.000000  2008.000000   \n",
+       "75%       0.000000     0.000000      0.000000     8.000000  2009.000000   \n",
+       "max     480.000000   738.000000  15500.000000    12.000000  2010.000000   \n",
+       "\n",
+       "           SalePrice  \n",
+       "count    1460.000000  \n",
+       "mean   180921.195890  \n",
+       "std     79442.502883  \n",
+       "min     34900.000000  \n",
+       "25%    129975.000000  \n",
+       "50%    163000.000000  \n",
+       "75%    214000.000000  \n",
+       "max    755000.000000  \n",
+       "\n",
+       "[8 rows x 38 columns]"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.describe()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "### Dostęp do danych"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Index([u'Id', u'MSSubClass', u'MSZoning', u'LotFrontage', u'LotArea',\n",
+      "       u'Street', u'Alley', u'LotShape', u'LandContour', u'Utilities',\n",
+      "       u'LotConfig', u'LandSlope', u'Neighborhood', u'Condition1',\n",
+      "       u'Condition2', u'BldgType', u'HouseStyle', u'OverallQual',\n",
+      "       u'OverallCond', u'YearBuilt', u'YearRemodAdd', u'RoofStyle',\n",
+      "       u'RoofMatl', u'Exterior1st', u'Exterior2nd', u'MasVnrType',\n",
+      "       u'MasVnrArea', u'ExterQual', u'ExterCond', u'Foundation', u'BsmtQual',\n",
+      "       u'BsmtCond', u'BsmtExposure', u'BsmtFinType1', u'BsmtFinSF1',\n",
+      "       u'BsmtFinType2', u'BsmtFinSF2', u'BsmtUnfSF', u'TotalBsmtSF',\n",
+      "       u'Heating', u'HeatingQC', u'CentralAir', u'Electrical', u'1stFlrSF',\n",
+      "       u'2ndFlrSF', u'LowQualFinSF', u'GrLivArea', u'BsmtFullBath',\n",
+      "       u'BsmtHalfBath', u'FullBath', u'HalfBath', u'BedroomAbvGr',\n",
+      "       u'KitchenAbvGr', u'KitchenQual', u'TotRmsAbvGrd', u'Functional',\n",
+      "       u'Fireplaces', u'FireplaceQu', u'GarageType', u'GarageYrBlt',\n",
+      "       u'GarageFinish', u'GarageCars', u'GarageArea', u'GarageQual',\n",
+      "       u'GarageCond', u'PavedDrive', u'WoodDeckSF', u'OpenPorchSF',\n",
+      "       u'EnclosedPorch', u'3SsnPorch', u'ScreenPorch', u'PoolArea', u'PoolQC',\n",
+      "       u'Fence', u'MiscFeature', u'MiscVal', u'MoSold', u'YrSold', u'SaleType',\n",
+      "       u'SaleCondition', u'SalePrice'],\n",
+      "      dtype='object')\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(data.columns)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0    60\n",
+      "1    20\n",
+      "2    60\n",
+      "3    70\n",
+      "4    60\n",
+      "Name: MSSubClass, dtype: int64\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(data['MSSubClass'].head())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "   MSSubClass  SalePrice\n",
+      "0          60     208500\n",
+      "1          20     181500\n",
+      "2          60     223500\n",
+      "3          70     140000\n",
+      "4          60     250000\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(data[['MSSubClass', 'SalePrice']].head())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Id</th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>MSZoning</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>LotArea</th>\n",
+       "      <th>Street</th>\n",
+       "      <th>Alley</th>\n",
+       "      <th>LotShape</th>\n",
+       "      <th>LandContour</th>\n",
+       "      <th>Utilities</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PoolArea</th>\n",
+       "      <th>PoolQC</th>\n",
+       "      <th>Fence</th>\n",
+       "      <th>MiscFeature</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SaleType</th>\n",
+       "      <th>SaleCondition</th>\n",
+       "      <th>SalePrice</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>1</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>65.0</td>\n",
+       "      <td>8450</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>208500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>4</td>\n",
+       "      <td>70</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>60.0</td>\n",
+       "      <td>9550</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2006</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Abnorml</td>\n",
+       "      <td>140000</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>2 rows × 81 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   Id  MSSubClass MSZoning  LotFrontage  LotArea Street Alley LotShape  \\\n",
+       "0   1          60       RL         65.0     8450   Pave   NaN      Reg   \n",
+       "3   4          70       RL         60.0     9550   Pave   NaN      IR1   \n",
+       "\n",
+       "  LandContour Utilities    ...     PoolArea PoolQC Fence MiscFeature MiscVal  \\\n",
+       "0         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "3         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "\n",
+       "  MoSold YrSold  SaleType  SaleCondition  SalePrice  \n",
+       "0      2   2008        WD         Normal     208500  \n",
+       "3      2   2006        WD        Abnorml     140000  \n",
+       "\n",
+       "[2 rows x 81 columns]"
+      ]
+     },
+     "execution_count": 13,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.loc[[0,3]]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Id</th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>MSZoning</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>LotArea</th>\n",
+       "      <th>Street</th>\n",
+       "      <th>Alley</th>\n",
+       "      <th>LotShape</th>\n",
+       "      <th>LandContour</th>\n",
+       "      <th>Utilities</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PoolArea</th>\n",
+       "      <th>PoolQC</th>\n",
+       "      <th>Fence</th>\n",
+       "      <th>MiscFeature</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SaleType</th>\n",
+       "      <th>SaleCondition</th>\n",
+       "      <th>SalePrice</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>1</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>65.0</td>\n",
+       "      <td>8450</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>208500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>80.0</td>\n",
+       "      <td>9600</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>2007</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>181500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>3</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>68.0</td>\n",
+       "      <td>11250</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>9</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>223500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>4</td>\n",
+       "      <td>70</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>60.0</td>\n",
+       "      <td>9550</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2006</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Abnorml</td>\n",
+       "      <td>140000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>5</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>84.0</td>\n",
+       "      <td>14260</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>250000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>6</td>\n",
+       "      <td>50</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>85.0</td>\n",
+       "      <td>14115</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>MnPrv</td>\n",
+       "      <td>Shed</td>\n",
+       "      <td>700</td>\n",
+       "      <td>10</td>\n",
+       "      <td>2009</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>143000</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>6 rows × 81 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   Id  MSSubClass MSZoning  LotFrontage  LotArea Street Alley LotShape  \\\n",
+       "0   1          60       RL         65.0     8450   Pave   NaN      Reg   \n",
+       "1   2          20       RL         80.0     9600   Pave   NaN      Reg   \n",
+       "2   3          60       RL         68.0    11250   Pave   NaN      IR1   \n",
+       "3   4          70       RL         60.0     9550   Pave   NaN      IR1   \n",
+       "4   5          60       RL         84.0    14260   Pave   NaN      IR1   \n",
+       "5   6          50       RL         85.0    14115   Pave   NaN      IR1   \n",
+       "\n",
+       "  LandContour Utilities    ...     PoolArea PoolQC  Fence MiscFeature MiscVal  \\\n",
+       "0         Lvl    AllPub    ...            0    NaN    NaN         NaN       0   \n",
+       "1         Lvl    AllPub    ...            0    NaN    NaN         NaN       0   \n",
+       "2         Lvl    AllPub    ...            0    NaN    NaN         NaN       0   \n",
+       "3         Lvl    AllPub    ...            0    NaN    NaN         NaN       0   \n",
+       "4         Lvl    AllPub    ...            0    NaN    NaN         NaN       0   \n",
+       "5         Lvl    AllPub    ...            0    NaN  MnPrv        Shed     700   \n",
+       "\n",
+       "  MoSold YrSold  SaleType  SaleCondition  SalePrice  \n",
+       "0      2   2008        WD         Normal     208500  \n",
+       "1      5   2007        WD         Normal     181500  \n",
+       "2      9   2008        WD         Normal     223500  \n",
+       "3      2   2006        WD        Abnorml     140000  \n",
+       "4     12   2008        WD         Normal     250000  \n",
+       "5     10   2009        WD         Normal     143000  \n",
+       "\n",
+       "[6 rows x 81 columns]"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.loc[0:5]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
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+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
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+       "\n",
+       "    .dataframe thead th {\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Id</th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>MSZoning</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>LotArea</th>\n",
+       "      <th>Street</th>\n",
+       "      <th>Alley</th>\n",
+       "      <th>LotShape</th>\n",
+       "      <th>LandContour</th>\n",
+       "      <th>Utilities</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PoolArea</th>\n",
+       "      <th>PoolQC</th>\n",
+       "      <th>Fence</th>\n",
+       "      <th>MiscFeature</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SaleType</th>\n",
+       "      <th>SaleCondition</th>\n",
+       "      <th>SalePrice</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>1</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>65.0</td>\n",
+       "      <td>8450</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>208500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>80.0</td>\n",
+       "      <td>9600</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>2007</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>181500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>3</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>68.0</td>\n",
+       "      <td>11250</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>9</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>223500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>4</td>\n",
+       "      <td>70</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>60.0</td>\n",
+       "      <td>9550</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2006</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Abnorml</td>\n",
+       "      <td>140000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>5</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>84.0</td>\n",
+       "      <td>14260</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>250000</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>5 rows × 81 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   Id  MSSubClass MSZoning  LotFrontage  LotArea Street Alley LotShape  \\\n",
+       "0   1          60       RL         65.0     8450   Pave   NaN      Reg   \n",
+       "1   2          20       RL         80.0     9600   Pave   NaN      Reg   \n",
+       "2   3          60       RL         68.0    11250   Pave   NaN      IR1   \n",
+       "3   4          70       RL         60.0     9550   Pave   NaN      IR1   \n",
+       "4   5          60       RL         84.0    14260   Pave   NaN      IR1   \n",
+       "\n",
+       "  LandContour Utilities    ...     PoolArea PoolQC Fence MiscFeature MiscVal  \\\n",
+       "0         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "1         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "2         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "3         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "4         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "\n",
+       "  MoSold YrSold  SaleType  SaleCondition  SalePrice  \n",
+       "0      2   2008        WD         Normal     208500  \n",
+       "1      5   2007        WD         Normal     181500  \n",
+       "2      9   2008        WD         Normal     223500  \n",
+       "3      2   2006        WD        Abnorml     140000  \n",
+       "4     12   2008        WD         Normal     250000  \n",
+       "\n",
+       "[5 rows x 81 columns]"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data[data['MSZoning'] == 'RL'].head()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
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+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Id</th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>MSZoning</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>LotArea</th>\n",
+       "      <th>Street</th>\n",
+       "      <th>Alley</th>\n",
+       "      <th>LotShape</th>\n",
+       "      <th>LandContour</th>\n",
+       "      <th>Utilities</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PoolArea</th>\n",
+       "      <th>PoolQC</th>\n",
+       "      <th>Fence</th>\n",
+       "      <th>MiscFeature</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SaleType</th>\n",
+       "      <th>SaleCondition</th>\n",
+       "      <th>SalePrice</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>1</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>65.0</td>\n",
+       "      <td>8450</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>208500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>80.0</td>\n",
+       "      <td>9600</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>2007</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>181500</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>6</th>\n",
+       "      <td>7</td>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>75.0</td>\n",
+       "      <td>10084</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>8</td>\n",
+       "      <td>2007</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>307000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9</th>\n",
+       "      <td>10</td>\n",
+       "      <td>190</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>50.0</td>\n",
+       "      <td>7420</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>118000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>10</th>\n",
+       "      <td>11</td>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>70.0</td>\n",
+       "      <td>11200</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>129500</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>5 rows × 81 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "    Id  MSSubClass MSZoning  LotFrontage  LotArea Street Alley LotShape  \\\n",
+       "0    1          60       RL         65.0     8450   Pave   NaN      Reg   \n",
+       "1    2          20       RL         80.0     9600   Pave   NaN      Reg   \n",
+       "6    7          20       RL         75.0    10084   Pave   NaN      Reg   \n",
+       "9   10         190       RL         50.0     7420   Pave   NaN      Reg   \n",
+       "10  11          20       RL         70.0    11200   Pave   NaN      Reg   \n",
+       "\n",
+       "   LandContour Utilities    ...     PoolArea PoolQC Fence MiscFeature MiscVal  \\\n",
+       "0          Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "1          Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "6          Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "9          Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "10         Lvl    AllPub    ...            0    NaN   NaN         NaN       0   \n",
+       "\n",
+       "   MoSold YrSold  SaleType  SaleCondition  SalePrice  \n",
+       "0       2   2008        WD         Normal     208500  \n",
+       "1       5   2007        WD         Normal     181500  \n",
+       "6       8   2007        WD         Normal     307000  \n",
+       "9       1   2008        WD         Normal     118000  \n",
+       "10      2   2008        WD         Normal     129500  \n",
+       "\n",
+       "[5 rows x 81 columns]"
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data[(data['MSZoning'] == 'RL') & (data['LotShape'] == 'Reg')].head()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "ceny = data['SalePrice']"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "180921.19589041095"
+      ]
+     },
+     "execution_count": 22,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "ceny.mean()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 23,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "755000"
+      ]
+     },
+     "execution_count": 23,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "ceny.max()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'SalePrice'"
+      ]
+     },
+     "execution_count": 25,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "ceny.name"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 29,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('Plus vat:', 0       256455.00\n",
+      "1       223245.00\n",
+      "2       274905.00\n",
+      "3       172200.00\n",
+      "4       307500.00\n",
+      "5       175890.00\n",
+      "6       377610.00\n",
+      "7       246000.00\n",
+      "8       159777.00\n",
+      "9       145140.00\n",
+      "10      159285.00\n",
+      "11      424350.00\n",
+      "12      177120.00\n",
+      "13      343785.00\n",
+      "14      193110.00\n",
+      "15      162360.00\n",
+      "16      183270.00\n",
+      "17      110700.00\n",
+      "18      195570.00\n",
+      "19      170970.00\n",
+      "20      400119.00\n",
+      "21      171462.00\n",
+      "22      282900.00\n",
+      "23      159777.00\n",
+      "24      189420.00\n",
+      "25      315249.00\n",
+      "26      165804.00\n",
+      "27      376380.00\n",
+      "28      255225.00\n",
+      "29       84255.00\n",
+      "          ...    \n",
+      "1430    236332.20\n",
+      "1431    176812.50\n",
+      "1432     79335.00\n",
+      "1433    229395.00\n",
+      "1434    196800.00\n",
+      "1435    214020.00\n",
+      "1436    148215.00\n",
+      "1437    485378.91\n",
+      "1438    184131.00\n",
+      "1439    242310.00\n",
+      "1440    234930.00\n",
+      "1441    183639.00\n",
+      "1442    381300.00\n",
+      "1443    148830.00\n",
+      "1444    220908.00\n",
+      "1445    158670.00\n",
+      "1446    194217.00\n",
+      "1447    295200.00\n",
+      "1448    137760.00\n",
+      "1449    113160.00\n",
+      "1450    167280.00\n",
+      "1451    353120.70\n",
+      "1452    178350.00\n",
+      "1453    103935.00\n",
+      "1454    227550.00\n",
+      "1455    215250.00\n",
+      "1456    258300.00\n",
+      "1457    327795.00\n",
+      "1458    174813.75\n",
+      "1459    181425.00\n",
+      "Name: SalePrice, Length: 1460, dtype: float64)\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(\"Plus vat:\", ceny * 1.23)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 35,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "array(['RL', 'RM', 'C (all)', 'FV', 'RH'], dtype=object)"
+      ]
+     },
+     "execution_count": 35,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.MSZoning.unique()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 36,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "RL         1151\n",
+       "RM          218\n",
+       "FV           65\n",
+       "RH           16\n",
+       "C (all)      10\n",
+       "Name: MSZoning, dtype: int64"
+      ]
+     },
+     "execution_count": 36,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.MSZoning.value_counts()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 37,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "data['nowa'] = ceny * 1.23"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 42,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>MSZoning</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>Street</th>\n",
+       "      <th>Alley</th>\n",
+       "      <th>LotShape</th>\n",
+       "      <th>LandContour</th>\n",
+       "      <th>Utilities</th>\n",
+       "      <th>LotConfig</th>\n",
+       "      <th>LandSlope</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PoolQC</th>\n",
+       "      <th>Fence</th>\n",
+       "      <th>MiscFeature</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SaleType</th>\n",
+       "      <th>SaleCondition</th>\n",
+       "      <th>SalePrice</th>\n",
+       "      <th>nowa</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>65.0</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>Inside</td>\n",
+       "      <td>Gtl</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>208500</td>\n",
+       "      <td>256455.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>80.0</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>FR2</td>\n",
+       "      <td>Gtl</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>2007</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>181500</td>\n",
+       "      <td>223245.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>68.0</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>Inside</td>\n",
+       "      <td>Gtl</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>9</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>223500</td>\n",
+       "      <td>274905.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>70</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>60.0</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>Corner</td>\n",
+       "      <td>Gtl</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2006</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Abnorml</td>\n",
+       "      <td>140000</td>\n",
+       "      <td>172200.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>84.0</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>FR2</td>\n",
+       "      <td>Gtl</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>250000</td>\n",
+       "      <td>307500.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>5 rows × 80 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   MSSubClass MSZoning  LotFrontage Street Alley LotShape LandContour  \\\n",
+       "0          60       RL         65.0   Pave   NaN      Reg         Lvl   \n",
+       "1          20       RL         80.0   Pave   NaN      Reg         Lvl   \n",
+       "2          60       RL         68.0   Pave   NaN      IR1         Lvl   \n",
+       "3          70       RL         60.0   Pave   NaN      IR1         Lvl   \n",
+       "4          60       RL         84.0   Pave   NaN      IR1         Lvl   \n",
+       "\n",
+       "  Utilities LotConfig LandSlope    ...    PoolQC Fence MiscFeature MiscVal  \\\n",
+       "0    AllPub    Inside       Gtl    ...       NaN   NaN         NaN       0   \n",
+       "1    AllPub       FR2       Gtl    ...       NaN   NaN         NaN       0   \n",
+       "2    AllPub    Inside       Gtl    ...       NaN   NaN         NaN       0   \n",
+       "3    AllPub    Corner       Gtl    ...       NaN   NaN         NaN       0   \n",
+       "4    AllPub       FR2       Gtl    ...       NaN   NaN         NaN       0   \n",
+       "\n",
+       "  MoSold  YrSold  SaleType  SaleCondition  SalePrice      nowa  \n",
+       "0      2    2008        WD         Normal     208500  256455.0  \n",
+       "1      5    2007        WD         Normal     181500  223245.0  \n",
+       "2      9    2008        WD         Normal     223500  274905.0  \n",
+       "3      2    2006        WD        Abnorml     140000  172200.0  \n",
+       "4     12    2008        WD         Normal     250000  307500.0  \n",
+       "\n",
+       "[5 rows x 80 columns]"
+      ]
+     },
+     "execution_count": 42,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.drop('LotArea', axis=1)\n",
+    "data.drop(['Id', 'LotArea'], axis=1).head()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 44,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Id</th>\n",
+       "      <th>MSSubClass</th>\n",
+       "      <th>MSZoning</th>\n",
+       "      <th>LotFrontage</th>\n",
+       "      <th>LotArea</th>\n",
+       "      <th>Street</th>\n",
+       "      <th>Alley</th>\n",
+       "      <th>LotShape</th>\n",
+       "      <th>LandContour</th>\n",
+       "      <th>Utilities</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PoolQC</th>\n",
+       "      <th>Fence</th>\n",
+       "      <th>MiscFeature</th>\n",
+       "      <th>MiscVal</th>\n",
+       "      <th>MoSold</th>\n",
+       "      <th>YrSold</th>\n",
+       "      <th>SaleType</th>\n",
+       "      <th>SaleCondition</th>\n",
+       "      <th>SalePrice</th>\n",
+       "      <th>nowa</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>20</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>80.0</td>\n",
+       "      <td>9600</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>Reg</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>5</td>\n",
+       "      <td>2007</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>181500</td>\n",
+       "      <td>223245.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>3</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>68.0</td>\n",
+       "      <td>11250</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>9</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>223500</td>\n",
+       "      <td>274905.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>4</td>\n",
+       "      <td>70</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>60.0</td>\n",
+       "      <td>9550</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2006</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Abnorml</td>\n",
+       "      <td>140000</td>\n",
+       "      <td>172200.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>5</td>\n",
+       "      <td>60</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>84.0</td>\n",
+       "      <td>14260</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2008</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>250000</td>\n",
+       "      <td>307500.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>6</td>\n",
+       "      <td>50</td>\n",
+       "      <td>RL</td>\n",
+       "      <td>85.0</td>\n",
+       "      <td>14115</td>\n",
+       "      <td>Pave</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>IR1</td>\n",
+       "      <td>Lvl</td>\n",
+       "      <td>AllPub</td>\n",
+       "      <td>...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>MnPrv</td>\n",
+       "      <td>Shed</td>\n",
+       "      <td>700</td>\n",
+       "      <td>10</td>\n",
+       "      <td>2009</td>\n",
+       "      <td>WD</td>\n",
+       "      <td>Normal</td>\n",
+       "      <td>143000</td>\n",
+       "      <td>175890.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>5 rows × 82 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   Id  MSSubClass MSZoning  LotFrontage  LotArea Street Alley LotShape  \\\n",
+       "1   2          20       RL         80.0     9600   Pave   NaN      Reg   \n",
+       "2   3          60       RL         68.0    11250   Pave   NaN      IR1   \n",
+       "3   4          70       RL         60.0     9550   Pave   NaN      IR1   \n",
+       "4   5          60       RL         84.0    14260   Pave   NaN      IR1   \n",
+       "5   6          50       RL         85.0    14115   Pave   NaN      IR1   \n",
+       "\n",
+       "  LandContour Utilities    ...    PoolQC  Fence MiscFeature MiscVal MoSold  \\\n",
+       "1         Lvl    AllPub    ...       NaN    NaN         NaN       0      5   \n",
+       "2         Lvl    AllPub    ...       NaN    NaN         NaN       0      9   \n",
+       "3         Lvl    AllPub    ...       NaN    NaN         NaN       0      2   \n",
+       "4         Lvl    AllPub    ...       NaN    NaN         NaN       0     12   \n",
+       "5         Lvl    AllPub    ...       NaN  MnPrv        Shed     700     10   \n",
+       "\n",
+       "  YrSold SaleType  SaleCondition  SalePrice      nowa  \n",
+       "1   2007       WD         Normal     181500  223245.0  \n",
+       "2   2008       WD         Normal     223500  274905.0  \n",
+       "3   2006       WD        Abnorml     140000  172200.0  \n",
+       "4   2008       WD         Normal     250000  307500.0  \n",
+       "5   2009       WD         Normal     143000  175890.0  \n",
+       "\n",
+       "[5 rows x 82 columns]"
+      ]
+     },
+     "execution_count": 44,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "data.drop(0).head()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "celltoolbar": "Slideshow",
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.5"
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+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}