[英]Append Additional Information(data) to Dataframe Column Values
I have a dataframe that looks like this:我有一个看起来像这样的 dataframe:
Filename Label
Mont_01_015_00 IDL
Mont_01_016_00 NEG
There are 18,000+ files and I am looking at append (.wav) to the filenames so that it will look like this:有 18,000 多个文件,我正在查看文件名的 append (.wav),使其看起来像这样:
Filename Label
Mont_01_015_00.wav IDL
Mont_01_016_00.wav NEG
I have tried several dataframe.append options without success.我已经尝试了几个 dataframe.append 选项但没有成功。 I am relatively new to this so I will appreciate your help.
我对此比较陌生,因此我将感谢您的帮助。 Thanks.
谢谢。
df.Filename = df.Filename+'.wav'
ex:前任:
>>> df
A B C D
0 e h b a
1 h c e i
2 j h f d
3 a f i a
4 e d g a
5 d e j j
6 d b j g
7 b g f c
8 d b a c
9 h d e a
>>> df.A = df.A+'.wav'
>>> df
A B C D
0 e.wav h b a
1 h.wav c e i
2 j.wav h f d
3 a.wav f i a
4 e.wav d g a
5 d.wav e j j
6 d.wav b j g
7 b.wav g f c
8 d.wav b a c
9 h.wav d e a
try:尝试:
df['Filename'] = df['Filename'].map('{}.wav'.format)
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