移除冗餘特徵

Python 的 Machine Learning 前處理

James Chapman

Curriculum Manager, DataCamp

冗餘特徵

city	state	lat	long
hico	tx	31.982778	-98.033333
mackinaw city	mi	45.783889	-84.727778
winchester	ky	37.990000	-84.179722

print(df)

        A     B     C
0    3.06  3.92  1.04
1    2.76  3.40  1.05
2    3.24  3.17  1.03
...

print(df.corr())

          A         B         C
A  1.000000  0.787194  0.543479
B  0.787194  1.000000  0.565468
C  0.543479  0.565468  1.000000

Python 的 Machine Learning 前處理