From ac42ca9fd014f28b302d9bb5d2af72bc80bc9648 Mon Sep 17 00:00:00 2001
From: piotr6789 <piotr.ulanicki4@gmail.com>
Date: Tue, 18 May 2021 18:11:26 +0200
Subject: [PATCH] add script to linear regression

---
 dev-0/out.tsv        | 1000 ++++++++++++++++++++++++++++++++++++++++++
 linear-regression.py |   58 +++
 test-A/out.tsv       | 1000 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 2058 insertions(+)
 create mode 100644 dev-0/out.tsv
 create mode 100644 linear-regression.py
 create mode 100644 test-A/out.tsv

diff --git a/dev-0/out.tsv b/dev-0/out.tsv
new file mode 100644
index 0000000..a129a04
--- /dev/null
+++ b/dev-0/out.tsv
@@ -0,0 +1,1000 @@
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\ No newline at end of file
diff --git a/linear-regression.py b/linear-regression.py
new file mode 100644
index 0000000..5795c66
--- /dev/null
+++ b/linear-regression.py
@@ -0,0 +1,58 @@
+import pandas as pd
+from pathlib import Path
+from sklearn.linear_model import LinearRegression
+
+def get_names():
+  DATA_DIR = Path('./')
+  with open(DATA_DIR / 'names') as f_names:
+    return f_names.read().rstrip('\n').split('\t')
+
+def get_data(names):
+  df = pd.read_csv("train/train.tsv", header=None, sep="\t", error_bad_lines=False, names=names)
+  dev_data = pd.read_csv("dev-0/in.tsv", header=None, sep="\t", error_bad_lines=False, names=['mileage', 'year', 'brand', 'engineType','engineCapacity'])
+  test_data = pd.read_csv("test-A/in.tsv", header=None, sep="\t", error_bad_lines=False, names=['mileage', 'year','brand', 'engineType', 'engineCapacity'])
+  return df, dev_data, test_data
+
+def get_train_data(df):
+  df = df.drop(['brand'], axis=1)
+
+  train = pd.get_dummies(df, columns=['engineType'])
+
+  train = train.loc[(train['price'] > 1000)]
+  return train.loc[(train['mileage'] > 100)]
+
+def get_x(train):
+  return train.loc[:, train.columns != 'price']
+
+def get_y(train):
+  return train['price']
+
+def get_linear_regression(x,y):
+  return LinearRegression().fit(x, y)
+
+def process_data(df):
+  data = df.drop(['brand'], axis=1)
+  return pd.get_dummies(data, columns=['engineType'])
+
+def get_prediction(clf, data, type):
+  prediction = clf.predict(data)
+  if type == 'dev':
+    prediction.tofile("./dev-0/out.tsv", sep='\n')
+  elif type == 'test':
+    prediction.tofile("./test-A/out.tsv", sep='\n')
+
+def main():
+  #prepare
+  df, dev_data, test_data = get_data(get_names())
+  train = get_train_data(df)
+  x = get_x(train)
+  y = get_y(train)
+  #linear regression
+  clf = get_linear_regression(x, y)
+  #predictions
+  dev = process_data(dev_data)
+  test = process_data(test_data)
+  get_prediction(clf, dev, 'dev')
+  get_prediction(clf, test, 'test')
+
+main()
\ No newline at end of file
diff --git a/test-A/out.tsv b/test-A/out.tsv
new file mode 100644
index 0000000..41b6d9d
--- /dev/null
+++ b/test-A/out.tsv
@@ -0,0 +1,1000 @@
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