to detect if a data frame has nan values
df.isnull().sum().sum()
5
to detect if a data frame has nan values
df.isnull().sum().sum()
5
to detect if a data frame has nan values
> df.isnull().any().any()
True
represent NaN with pandas in python
import pandas as pd
if pd.isnull(float("Nan")):
print("Null Value.")
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