机器学习之学习曲线分析 learning curve

    import numpy as np
    import matplotlib.pyplot as plt
    from sklearn.naive_bayes import GaussianNB
    from sklearn.svm import SVC
    from sklearn.ensemble import RandomForestClassifier as RFC
    from sklearn.tree import DecisionTreeClassifier as DTC
    from sklearn.datasets import load_digits
    from sklearn.model_selection import learning_curve
    from sklearn.model_selection import ShuffleSplit
    from time import time
    import datetime
    import warnings
    warnings.filterwarnings("ignore")
    
    def plot_learning_curve(estimator,title,x,y,ax,ylim= None,cv = None,n_