replacing every columns of nan with the mean of each columns

Hi all, i want to replace every columns of nan with the mean of each columns and i used the following code

median1 = nanmean(combinedatamat)  
[rows, columns] = size(combinedatamat);  
n = 0 ;  
for col = 1 : columns  
    n = n + 1;
    combinedatamat(isnan(combinedatamat(:,n))) = median1(1,n) ;
end

What i get is the first column of combinedatamat being replaced with the last columns of median1 while the rest of the columns in combinedatamat still contain NAN, can i know what is the error here ? thanks in advance

[crixus]

median = nanmean(combinedatamat);

for n = 1 : size(combinedatamat,2)

     for nn = 1:size(combinedatamat,1)
         if (isnan(combinedatamat(nn,n)))
             combinedatamat(nn,n) = median(:,n);
         end
     end
  end

this seems to work well.

Answer 1

[Guillaume]

A simple vectorised way of achieving what you want:

median1 = repmat(nanmean(combinedatamat), size(combinedatamat, 1), 1);
combinedatamat(isnan(combinedatamat)) = median1(isnan(combinedatamat))

[crixus]

Wow ! nice ! Thanks