How to find indices of similar values in a vector?

14 views (last 30 days)
I want to get the indices of similar values in a vector. For example, I have a vector x=[1 1 2 2 3]. The output should be something like this: indices = 1,2 & 3,4

Accepted Answer

Rob Campbell
Rob Campbell on 1 Aug 2017
Edited: Rob Campbell on 1 Aug 2017
I'm unsure if you're looking for sequential numbers or not. The following just looks for repeats. Does it do what you want?
x = [1,1,2,2,3,4,5,6,1,2,3];
% Store in a cell array the indexes of values that repeat
for thisU=unique(x)
if length(f)>1, reps{end+1}=f; end

More Answers (0)


Find more on Matrices and Arrays in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by