Python Practice › Pandas Programs › Program 54
Count NaN values
Write a pandas program to count NaN values.
Output
2
Approach
isna().sum().sum().
Solution
import numpy as npimport pandas as pddf = pd.DataFrame({"name": ["Alex", "John", "Peter", "Klaus"], "age": [30, np.nan, 29, np.nan]})print(df.isna().sum().sum())Output
2
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