python df is nan code example
Example 1: find nan value in dataframe python
# to mark NaN column as True
df['your column name'].isnull()
Example 2: python test is nan
math.isnan(n)
Example 3: python3 is nan
>>> import math
>>> x = float('nan')
>>> math.isnan(x)
True
Example 4: pandas nan values in column
df['your column name'].isnull()