MATLAB Answers

Finding Of Same Values in Matrix

1 view (last 30 days)
Hi everbody
I have a matrix includes 1724 values, i want to find which elements are same in this matrix (For ex. 25. and 426. values are same etc.)
How can i make this?

Accepted Answer

Image Analyst
Image Analyst on 6 Dec 2015
What about using unique and a brute force approach:
m = randi(10, 1, 100) % Sample data.
allValues = unique(m); % Find unique numbers.
for k = 1 : length(allValues)
thisValue = allValues(k);
indexes{k} = find(m == thisValue);
fprintf('The number %f is found at indexes : ', thisValue);
fprintf('%d ', indexes{k});
% celldisp(indexes)
  1 Comment
Volkan Yangin
Volkan Yangin on 6 Dec 2015
Thank you for answer, Image Analyst.

Sign in to comment.

More Answers (1)

Andrei Bobrov
Andrei Bobrov on 6 Dec 2015
a - your array;
b = unique(a);
[~,idx] = ismember(a,b);

Community Treasure Hunt

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

Start Hunting!

Translated by