pandas dataframe add two columns int and string
df1 = df['1st Column Name'].map(str) + df['2nd Column Name'].map(str) + ...pandas dataframe add two columns int and string
df1 = df['1st Column Name'].map(str) + df['2nd Column Name'].map(str) + ...pandas assign multiple columns at once
df = pd.DataFrame({'col1':[0,1,2], 'col2':[0,1,2], 'col3':[0,1,2]})
df
col1 col2 col3
0 0 0 0
1 1 1 1
2 2 2 2
df['col1'], df['col2'], df['col3'] = zip(*df.apply(lambda r: (1, 2, 3), axis=1))
df
col1 col2 col3
0 1 2 3
1 1 2 3
2 1 2 3Copyright © 2021 Codeinu
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