Finding Max Value From Matlab Variable

Hi Experts,

I have a variable

out

i want to extract the max value and its corresponding cell value i.e 17531 and 3 .....i used max function i.e

a = max(out); 
but it is displaying 4 17531.............I dont know why it is showing 4 instead of 3???Please help

Answer 1

[Andreas Goser]

That is a nice one! But in the doc it says

"If A is a matrix, then max(A) treats the columns of A as vectors and returns a row vector of largest elements."

So you maybe want to do something else? Like

[a,ix]=max(out(:,2))

[rizwan]

Thanks it worked for me.....

Can you please guide in this scenario..

      out   = [a,histc(idx(:),a)];    % out variable having cluster number and cluster size
      [a,ix]= max(out(:,2)); %getting the max value in a and its index in ix variable
      [row , col] = find(idx ==ix);%using find func in checking where in idx the ix exists and storing the row col index in row and col
      mx_row = max(row); %getting max row index
      mx_col = max(col);%getting max col index
      for i = 1 : mx_row %for loop till max row index
          for j = 1 : mx_col %for loop till max col index
          cp = I(row(i),col(j));% getting the row and col indexes and accessing the element from I and store it in cp 
          end
      end

There is error for loops it is not storing the values at corresponding locations.. Can you please guide where i m having error on the above following code???

[Andreas Goser]

If you can provide data and code together, that is easier for me to help. Otherwise I need to make guesses.

[Image Analyst]

This latest question is a duplicate of a different one. One that I responded to in http://www.mathworks.com/matlabcentral/answers/184466-for-loop-issue-in-code#comment_273784