计算Dataframe中具有1个或多个NaN的行

Question

I have the following:

print(df.isna().sum())

Which gives me:

city                 2
country              0
testid               0
house             1807
house_number       248
po_box            1845
zipcode            260
road               132
state                1
state_district    1817
suburb            1800
unit              1806

I want the total number of rows that have 1 or more NaN values from columns city, state, zip, and house

Thanks for any suggestions.

Answer 1

This is how I would use isna and sum :

cols = ['city', 'state', 'zip', 'house']
df[df[cols].isna().sum(axis=1) > 0]

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Another option is calling dropna and checking the length.

u = df.dropna(subset=['city', 'state', 'zip', 'house'])
len(df) - len(u)