Printing in matrix form

Hi! I'm trying to neatly display the means of a 3-D matrix, but can't get the results to print as a 2-D matrix.

test = rand(3,3,4)

for i = 1:3; for j = 1:3; grid = mean(test(i,j,:)) end end

When 'grid' prints it lists the nine means individually rather than placing them in a 3x3 matrix. Any suggestions?

Thanks!

Answer 1

[Sean de Wolski]

No reason for a FOR-loop.

grid = mean(test,3);  %second input to mean is the dimension to mean along, in this case 3.

To fix your FOR-loop you just need to keep the indices:

for ii = 1:3; %ii and jj since i,j = sqrt(-1)
   for jj = 1:3; 
      grid(ii,jj) = mean(test(ii,jj,:))
   end
end

[Donald]

that's very simple, thanks!

also, thanks for the head's up