https://scikit-learn.org/dev/auto_examples/tree/plot_iris_dtc.html
https://scikit-learn.org/dev/auto_examples/ensemble/plot_adaboost_twoclass.html
https://scikit-learn.org/dev/auto_examples/calibration/plot_compare_calibration.html
https://scikit-learn.org/dev/auto_examples/linear_model/plot_logistic_multinomial.html
https://scikit-learn.org/dev/auto_examples/linear_model/plot_sgd_iris.html