df see how many rows have NaN code example
Example 1: dataframe find nan rows
df[df.isnull().any(axis=1)]
Example 2: count rows with nan pandas
np.count_nonzero(df.isnull().values)
np.count_nonzero(df.isnull()) # also works
df[df.isnull().any(axis=1)]
np.count_nonzero(df.isnull().values)
np.count_nonzero(df.isnull()) # also works