python zeros to nan
a[a==0] = np.nanpython zeros to nan
a[a==0] = np.nanpython test is nan
math.isnan(n)check if something is nan python
import math
print math.isnan(float('NaN'))OutputTrue
print math.isnan(1.0)OutputFalseIdentify Null and NAN python
import pandas as pd
pd.isnull(df.columnName).sum()
pd.notnull(df.columnName).sum()Copyright © 2021 Codeinu
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