眼脑相关性及回归分析

    import numpy as np
    import pandas as pd
    from sklearn.linear_model import BayesianRidge, LinearRegression, ElasticNet
    from sklearn.svm import SVR
    from sklearn.ensemble.gradient_boosting import GradientBoostingRegressor   # 集成算法
    from sklearn.model_selection import cross_val_score    # 交叉验证
    from sklearn.metrics import explained_variance_score, mean_absolute_error, mean_squared_error, r2_score
    import matplotlib.pyplot as plt
    import seaborn as sns
    import os
    
    def mkdir(path_3):
    folder = os.path.exists(path_3)
    if not folder:  # 判断是否存在文件夹如果不存在