MATLAB: Findgroups, order of unique values in an array

Question

Hi,

I am trying to use "findgroups" in order to later split my data into different groups. But the order at which the groups are seperated is important for me. Using "findgroups" the order of groups is not "stable". How can I change that?

I did this:

[G ID]=findgroups(labels_all);

But

ID

doesn't come in that same order as

labels_all

I know that in unique, stable can fix this

q=unique((labels_all),'stable')

here q will be in order that unique values occur in labels_all.

Thank you!

Answer 1

[ID,~,G] = unique(labels_all,'stable')