plot_cumulative_gain with examples#

An example showing the plot_cumulative_gain function used by a scikit-learn classifier.

 9 # Authors: The scikit-plots developers
10 # SPDX-License-Identifier: BSD-3-Clause
11
12 from sklearn.datasets import (
13     load_iris as data_3_classes,
14 )
15 from sklearn.linear_model import LogisticRegression
16 from sklearn.model_selection import train_test_split
17
18 import numpy as np
19
20 np.random.seed(0)  # reproducibility
21 # importing pylab or pyplot
22 import matplotlib.pyplot as plt
23
24 # Import scikit-plot
25 import scikitplot as sp
26
27 # Load the data
28 X, y = data_3_classes(return_X_y=True, as_frame=False)
29 X_train, X_val, y_train, y_val = train_test_split(X, y, test_size=0.5, random_state=0)
30
31 # Create an instance of the LogisticRegression
32 model = LogisticRegression(max_iter=int(1e5), random_state=0).fit(X_train, y_train)
33
34 # Perform predictions
35 y_val_prob = model.predict_proba(X_val)
36
37 # Plot!
38 ax = sp.kds.plot_cumulative_gain(
39     y_val,
40     y_val_prob,
41     save_fig=True,
42     save_fig_filename="",
43     # overwrite=True,
44     add_timestamp=True,
45     # verbose=True,
46 )
Cumulative Gain Plot

Tags: model-type: classification model-workflow: model evaluation plot-type: line plot-type: cum-gain curve level: beginner purpose: showcase

Total running time of the script: (0 minutes 0.272 seconds)

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