How to generate random (2 integer number) pair from the given values (say integer from 1-10) without repeating the integer number?

Hi,

I want to generate pair of 2 values from the given values so that values or number donot repeat.

For example, for the value 10, i want to generate pair of 2 values assign or save in matrix.

It should give me matrix like: (1, 7), ( 2,9), (3,5), (4,6),(8,10). { Any 2 integer value pair}

Thanks and Regard

[Image Analyst]

What exactly does "generate pair of 2 values" mean?

Do you want to generate a pair (one single pair), or 5 pairs (like you showed)?

Are the "given values" determined from your number (like 1 to N where N (10) is your number), or can it be any 2-column matrix where you specify the values (like you have a list of 1000 rows and 2 columns and need to pick one random row/pair from that given list of pairs)?

Answer 1

[Voss]

If I understand correctly that there should be no repeated values anywhere in any pair, you can do this:

N = 10;
reshape(randperm(N),[],2)

ans = 5×2

10 8 4 9 2 6 7 1 3 5