Sort Matrix by Columns (descending by the number NaN entries)

Once again I need your help!

I have a matrix with a variable number of columns. All these columns have a different number of NaN entries.

I would like to sort the matrix in a way that I have a new matrix with the first column having the lowest number of NaN entries,...

Thanks a lot in advance!

Answer 1

[Azzi Abdelmalek]

A=rand(10);ii=randperm(100);A(ii(1:40))=nan %example

[c,idx]=sort(sum(isnan(A)))
out=A(:,idx)

[Christian Maschner]

Superb! This was exactly what I was looking for!!!