## automatically create a group of same elements from an array

on 29 Aug 2018

### KL (view profile)

on 29 Aug 2018
hello, i have a question about how to automatically group same elements of an array. Example: A=(3,3,3,2,1,4,5,5)
i want to group it into: Group1=(1) Group2=(2) Group3=(3,3,3) Group4=(4) Group5=(5,5)
but sometimes, the elements can be varied and it depends on the calculation. So the number of groups cannot be determined manually. So may i ask your idea, how to make the group automatically based on A ,using for loop?

Geoff Hayes

### Geoff Hayes (view profile)

on 29 Aug 2018
Surya - please clarify what you mean by the elements can be varied and it depends on the calculation. Also, are you elements always integers?
Surya Putra Kartolo

### Surya Putra Kartolo (view profile)

on 29 Aug 2018
yeah, its always integers. i mean is that the integers in A can change depends on the calculation of the image. so sometimes A=(3,3,3,2,1,4,5,5), and if i do for other calculation A can be like A=(6,6,4,4,3,1,2,2). so the integers can be varied.

R2018a