counting number of onesin a matrix

8 views (last 30 days)
i have a matrix
A=[1 2 3;1 1 2;3 3 2]
from these i wwant to count number of 1's,2;s,3's
please help
  1 Comment
Daniel Shub
Daniel Shub on 27 Mar 2012
This is very similar to your previous question: http://www.mathworks.com/matlabcentral/answers/33405-counting-the-values-and-variables
What have you tried so far? Where are you stuck?

Sign in to comment.

Accepted Answer

Andrei Bobrov
Andrei Bobrov on 27 Mar 2012
a = unique(A);
out = [a, histc(A(:),a)];
OR in rows:
a = unique(A)'
outrws = [a;cell2mat(arrayfun(@(x)histc(A(x,:),a),(1:size(A,1))','un',0))]
in columns
a = unique(A)
outcls = [a,cell2mat(arrayfun(@(x)histc(A(:,x),a),1:size(A,2),'un',0))]

More Answers (0)

Categories

Find more on Install Products in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!