Answers for "fill all missing values with nan pandas"

3

check for missing/ nan values in pandas dataframe

In [27]: df 
Out[27]: 
          A         B         C
1       NaN -2.027325  1.533582
2       NaN       NaN  0.461821
3 -0.788073       NaN       NaN
4 -0.916080 -0.612343       NaN
5 -0.887858  1.033826       NaN
 
In [28]: df.isnull().sum() # Returns the sum of NaN values in each column.
Out[28]: 
A   2
B   2
C   3

In [29]: df.isnull().sum().sum # Returns the total NaN values in the dataframe
Out[29]: 
7
Posted by: Guest on June-29-2021
4

how to fill nan values with mean in pandas

df.fillna(df.mean())
Posted by: Guest on April-13-2020

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