how to find number of missing values in a column in python code example
Example 1: count missing values by column in pandas
df.isna().sum()
Example 2: how to check for missing values in pandas
dataframe.isnull()
dataframe.any()
Example 3: getting the number of missing values in pandas
cols_to_delete = df.columns[df.isnull().sum()/len(df) > .90]
df.drop(cols_to_delete, axis = 1, inplace = True)