Count missing values groupby

CLASS FEATURE1 FEATURE2 FEATURE3
  X      A       NaN      NaN
  X     NaN       A       NaN
  B      A        A        A
  
 df.drop('CLASS', 1).isna().groupby(df.CLASS, sort=False).sum().reset_index()

  CLASS  FEATURE1  FEATURE2  FEATURE3
0     X       1.0       1.0       2.0
1     B       0.0       0.0       0.0

Similar codes

1 vote148 views2 answers
One hot encoding numpy
Python
-1 vote135 views1 answer
K means clustering python medium
Python
0 vote129 views3 answers
H2o ai python
Python
2 votes136 views1 answer
Tkinter label textvariable example
Python
-1 vote126 views1 answer
Colored output
Python
12 votes119 views2 answers
Convert list to array python
Python
0 vote142 views1 answer
Make tkinter text editing disabled
Python
1 vote132 views1 answer
Algorithms for Determine the sum of al digits of n
Python
15 votes138 views6 answers
How to append list in python
Python
6 votes127 views2 answers
Google search api python
Python