how to check if column has na python
#Check for NaN under a single DataFrame column:
df['your column name'].isnull().values.any()
#Count the NaN under a single DataFrame column:
df['your column name'].isnull().sum()
#Check for NaN under an enire DataFrame:
df.isnull().values.any()show which columns in dataframe have NA
In [71]: df
Out[71]:
a b c
0 NaN 7.0 0
1 0.0 NaN 4
2 2.0 NaN 4
3 1.0 7.0 0
4 1.0 3.0 9
5 7.0 4.0 9
6 2.0 6.0 9
7 9.0 6.0 4
8 3.0 0.0 9
9 9.0 0.0 1
In [72]: df.isna().any()
Out[72]:
a True
b True
c False
dtype: boolCopyright © 2021 Codeinu
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