fillna with mean pandas
sub2['income'].fillna((sub2['income'].mean()), inplace=True)
fillna with mean pandas
sub2['income'].fillna((sub2['income'].mean()), inplace=True)
DataFrame.fillna
>>> df.fillna(0)
A B C D
0 0.0 2.0 0.0 0
1 3.0 4.0 0.0 1
2 0.0 0.0 0.0 5
3 0.0 3.0 0.0 4
fillna pandas inplace
When inplace = True , the data is modified in place, which means it will return nothing and the dataframe is now updated. When inplace = False , which is the default, then the operation is performed and it returns a copy of the object. You then need to save it to something.
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