check which columns have nan pandas code example
Example 1: find nan values in a column pandas
df.isnull().values.any()
Example 2: find nan values in a column pandas
df['your column name'].isnull().sum()
Example 3: find nan value in dataframe python
# to mark NaN column as True
df['your column name'].isnull()
Example 4: find nan values in a column pandas
df.isnull().sum().sum()