find nan value in dataframe python
# to mark NaN column as True
df['your column name'].isnull()find nan value in dataframe python
# to mark NaN column as True
df['your column name'].isnull()pandas where retuning NaN
# Try using a loc instead of a where:
df_sub = df.loc[df.yourcolumn == 'yourvalue']Copyright © 2021 Codeinu
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