Decision tree test #1

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Mirrowel 2023-05-18 19:17:24 +02:00
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from sklearn.datasets import load_iris
from sklearn.tree import DecisionTreeClassifier
from sklearn.model_selection import train_test_split
from sklearn import metrics
# Load the Iris dataset (or you can use your own dataset)
iris = load_iris()
X = iris.data
y = iris.target
# Split the dataset into training and testing sets
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)
# Create an instance of the DecisionTreeClassifier
clf = DecisionTreeClassifier()
# Train the decision tree classifier
clf.fit(X_train, y_train)
# Make predictions on the testing set
y_pred = clf.predict(X_test)
# Evaluate the accuracy of the model
accuracy = metrics.accuracy_score(y_test, y_pred)
print("Accuracy:", accuracy)