在 Pandas 中将行名称转换为列
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时间：2020-09-13 22:23:12 来源:igfitidea点击:
Convert row names into a column in Pandas
提问by pdubois
I have the following Pandas data frame:
我有以下 Pandas数据框：
print(df)
head1 head2 head3
bar 32 3 100
bix 22 NaN NaN
foo 11 1 NaN
qux NaN 10 NaN
xoo NaN 2 20
What I want to do is to convert the row names bar, bix, ...into columns such that
in the end I have something like this:
我想要做的是将行名称bar, bix, ...转换为列，这样最后我就有了这样的东西：
newhead head1 head2 head3
0 bar 32 3 100
1 bix 22 NaN NaN
2 foo 11 1 NaN
3 qux NaN 10 NaN
4 xoo NaN 2 20
How can I achieve that?
我怎样才能做到这一点？
回答by unutbu
df.index.name = 'newhead'
df.reset_index(inplace=True)
yields
产量
newhead head1 head2 head3
0 bar 32 3 100
1 bix 22 NaN NaN
2 foo 11 1 NaN
3 qux NaN 10 NaN
4 xoo NaN 2 20
