MATLAB: How to sort the column of matrix according to amount of NaN for each column

Question

In simple case, I have the matrix like this:

   NaN     1     4     6   NaN
     9   NaN     6     1     2
   NaN     3     2     8     3
     7   NaN     1     9     3
     7     1     8     2     4

and from the matrix we can see the amount of the NaNs: column 1= 2, column 2= 2, column 3= 0, column 4= 0, column 5= 1,

so i want to sort the columns in the matrix according to their NaNs and become like this:

     4     6    NaN   NaN    1
     6     1     2     9    NaN
     2     8     3    NaN    3
     1     9     3     7    NaN
     8     2     4     7     1

May somebody help me with the code? Thanks before :')

Answer 1

   n = sum(isnan(A));