8、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
(1)、Variance Threshold(threshold =1.0)
(2)、Variance Threshold(threshold =2.0)
源码:
from sklearn.feature_selection import VarianceThreshold def var(): var= VarianceThreshold(threshold=2.0) data = var.fit_transform([[0, 2, 0, 3], [0, 1, 4, 3], [0, 1, 1, 3]]) print(data) return None if __name__=="__main__": var()