[英]How to sort one column based on another column in Pandas Dataframe?
[英]How to sort dataframe based on a column in another dataframe in Pandas?
您可以set_index
使用set_index
和reindex
组合。
试试这个代码:
df1 = pd.DataFrame({'Col1': ['a','b','c','d','e'], 'Col2':
['chocolate','chicken','pizza','icecream','cake'] })
Out :
Col1 Col2
0 a chocolate
1 b chicken
2 c pizza
3 d icecream
4 e cake
df2 = pd.DataFrame({'Col1': ['f','g','h','i','j'], 'Col2': ['chicken','cake','icecream','chocolate','pizza'] })
Out :
Col1 Col2
0 f chicken
1 g cake
2 h icecream
3 i chocolate
4 j pizza
df1 = df1.set_index('Col2')
df1 = df1.reindex(index=df2['Col2'])
df1 = df1.reset_index()
Out :
Col2 Col1
0 chicken b
1 cake e
2 icecream d
3 chocolate a
4 pizza c
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