percentage of missing values pandas code example

Example 1: pandas determine percentage of nans in column

>>> flights.isna().mean().round(4) * 100

Example 2: find percentage of missing values in a column in python

features_with_na=[features for features in dataset.columns if dataset[features].isnull().sum()>0]
for feature in features_with_na:
  print(feature, np.round(dataset[feature].isnull().mean(),4), ' %missing values')