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* ci(pre-commit): Add pep8-naming to `pre-commit` hooks (#7038) * refactor: Fix naming conventions (#7038) * Update arithmetic_analysis/lu_decomposition.py Co-authored-by: Christian Clauss <cclauss@me.com> * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * refactor(lu_decomposition): Replace `NDArray` with `ArrayLike` (#7038) * chore: Fix naming conventions in doctests (#7038) * fix: Temporarily disable project euler problem 104 (#7069) * chore: Fix naming conventions in doctests (#7038) Co-authored-by: Christian Clauss <cclauss@me.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
# Random Forest Classifier Example
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from matplotlib import pyplot as plt
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from sklearn.datasets import load_iris
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from sklearn.ensemble import RandomForestClassifier
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from sklearn.metrics import plot_confusion_matrix
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from sklearn.model_selection import train_test_split
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def main():
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"""
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Random Forest Classifier Example using sklearn function.
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Iris type dataset is used to demonstrate algorithm.
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"""
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# Load Iris dataset
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iris = load_iris()
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# Split dataset into train and test data
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x = iris["data"] # features
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y = iris["target"]
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x_train, x_test, y_train, y_test = train_test_split(
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x, y, test_size=0.3, random_state=1
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)
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# Random Forest Classifier
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rand_for = RandomForestClassifier(random_state=42, n_estimators=100)
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rand_for.fit(x_train, y_train)
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# Display Confusion Matrix of Classifier
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plot_confusion_matrix(
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rand_for,
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x_test,
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y_test,
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display_labels=iris["target_names"],
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cmap="Blues",
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normalize="true",
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)
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plt.title("Normalized Confusion Matrix - IRIS Dataset")
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plt.show()
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if __name__ == "__main__":
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main()
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