我有这样一个数据帧:
POLY_KEY_I SP1 SP2
0 FS01080100SM001 POAPRA TOXRYD
1 FS01080100SM001 NaN NaN
2 FS01080100SM001 OXRYD SYMOCC
3 FS01080100SM001 EUPESU POAPRA
4 FS01080100SM001 BOUGRA KOEPYR
5 FS01080100SM002 POAPRA EUPESU
6 FS01080100SM002 POAPRA NaN
7 FS01080100SM002 POAPRA KOEPYR
我想按POLY_KEY_I
分组,然后在此基础上组合SP1
和SP2
我想要的输出是这样的:
POLY_KEY_I SP
0 FS01080100SM001 POAPRA
1 FS01080100SM001 TOXRYD
2 FS01080100SM001 NaN
3 FS01080100SM001 NaN
4 FS01080100SM001 OXRYD
5 FS01080100SM001 SYMOCC
6 FS01080100SM001 EUPESU
7 FS01080100SM001 POAPRA
8 FS01080100SM001 BOUGRA
9 FS01080100SM001 KOEPYR
10 FS01080100SM002 POAPRA
11 FS01080100SM002 EUPESU
12 FS01080100SM002 POAPRA
13 FS01080100SM002 NaN
14 FS01080100SM002 POAPRA
15 FS01080100SM002 KOEPYR
您可以使用^{} 从宽到长重塑形状,如下所示:
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