问题描述
import emoji
def extract_emojis(text):
return ''.join(c for c in text if c in emoji.UNICODE_EMOJI)
for text in df['comments']:
df['emoji']=extract_emojis(text)
输出:
comments | emoji
0 Its very beautiful
1 Your new bike,@keir ...?
2 @philip ??
3 Any news on the Canadian expansion mentioned i...
4 Rocky Mountain ❤️
... ... ...
仅检查文本上的功能:
text = '@philip ??'
extract_emojis(text)
--> '\U0001f929\U0001f929'
预期结果:
comments | emoji
0 Its very beautiful |
1 Your new bike,@keir ...? |
2 @philip ?? | ??
3 Any news on the Canadian expansion mentioned i... |
4 Rocky Mountain ❤️ | ❤️
... ... ...
注意:
在查看以下链接后,我才问了这个问题:
Python unicode character conversion for Emoji
How to extract all the emojis from text?
解决方法
而不是遍历整个数据集。您可以使用apply
或lambda
应用该功能。
import pandas as pd
import emoji
df = pd.DataFrame([['@philip ?? '],['Rocky Mountain ❤️']],columns = ['comments'])
使用Lambda:
df['emojis'] = df['comments'].apply(lambda row: ''.join(c for c in row if c in emoji.UNICODE_EMOJI))
df
使用“应用”
def extract_emojis(text):
return ''.join(c for c in text if c in emoji.UNICODE_EMOJI)
df['emoji_apply'] = df['comments'].apply(extract_emojis)
df
输出:
comments emojis
@philip ?? ??
Rocky Mountain ❤️ ❤