how to drop na from one column pandas code example

Example 1: how to delete na values in a dataframe

# if you want to delete rows containing NA values
df.dropna(inplace=True)

Example 2: remove rows or columns with NaN value

df.dropna()     #drop all rows that have any NaN values
df.dropna(how='all')

Example 3: drop na pandas

>>> df.dropna(subset=['name', 'born'])
       name        toy       born
1    Batman  Batmobile 1940-04-25