The ‘Last year (2019)’ should be replaced with ‘LY’ I tried this but it did not work.
df1 = pd.DataFrame({'Revenue':["Last year (2019),This year (2020)","This year",np.nan], 'Cost':["This year,Last Year","This year",np.nan]}) df1.iloc[:,0:3].replace(to_replace ='Last year (2019)', value = 'LY', regex = True)
I have tried several regex attempts using ‘b’ but nothing seems to work. Any help is apprecciated
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Answer
Following may help you here, you need to escape (
and )
to make it treat like as a literal character.
df1.iloc[:,0:3].replace(to_replace ='Last year (2019)', value = 'LY', regex = True)
Following is the testing of above code:
import pandas as pd df1 = pd.DataFrame({'Revenue':["Last year (2019),This year (2020)","This year",np.nan], 'Cost':["This year,Last Year","This year",np.nan]}) df1.iloc[:,0:3].replace(to_replace ='Last year (2019)', value = 'LY', regex = True) Cost Revenue 0 This year,Last Year LY,This year (2020) 1 This year This year 2 NaN NaN