Decision tree test #1
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1.py
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1.py
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from sklearn.datasets import load_iris
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from sklearn.tree import DecisionTreeClassifier
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from sklearn.model_selection import train_test_split
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from sklearn import metrics
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# Load the Iris dataset (or you can use your own dataset)
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iris = load_iris()
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X = iris.data
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y = iris.target
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# Split the dataset into training and testing sets
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X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)
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# Create an instance of the DecisionTreeClassifier
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clf = DecisionTreeClassifier()
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# Train the decision tree classifier
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clf.fit(X_train, y_train)
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# Make predictions on the testing set
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y_pred = clf.predict(X_test)
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# Evaluate the accuracy of the model
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accuracy = metrics.accuracy_score(y_test, y_pred)
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print("Accuracy:", accuracy)
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