I would create a variable if another variable is null.
`
if df['var_1'].isnull():
df['var_2']==1
else:
df['var_2']==0
` I know, this code is not true, it is to make you understand the problem.
Can someone help me? Thanks
Create a variable if another variable is null in python
Bubi
0
Viewed 28
1 Answers
If this is pandas, we should try to stick to pandas/numpy for this type of thing.
# For your specific case:
df['var_2'] = df['var_1'].notna().astype(int)
# A more generalized approach:
df['var_2'] = np.where(df['var_1'].isna(), 'if true', 'if false')
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