特征选择

用过滤法对以下数据进行特征选择：

                             [[0,2,0,3],

                              [0,1,4,3],

                              [0,1,1,3]]

要求：

1、Variance Threshold（threshold =1.0）

2、将结果截图

 

from sklearn.feature_selection import  VarianceThreshold

def var(da, i):
    var = VarianceThreshold(threshold=i)
    data = var.fit_transform(da)
    return data

if __name__ == "__main__":
    data = [[0, 2, 0, 3], [0,  1, 4, 3], [0, 1, 1, 3]]
    print("threshold=0.0的值:\n", var(data, 1.0))