Answers for "count na column wise"

how to count the number of NA in r

sum(is.na(df$col))

Posted by: Guest on July-31-2020

find the number of nan per column pandas

In [1]: s = pd.Series([1,2,3, np.nan, np.nan])

In [4]: s.isna().sum()   # or s.isnull().sum() for older pandas versions
Out[4]: 2

Posted by: Guest on August-03-2020

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