Answers for "pandas best ways to find null nan"

count nan pandas

#Python, pandas
#Count missing values for each column of the dataframe df

df.isnull().sum()

Posted by: Guest on April-06-2020

pandas where retuning NaN

# Try using a loc instead of a where:
df_sub = df.loc[df.yourcolumn == 'yourvalue']

Posted by: Guest on April-08-2021

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