random number generating problems

hi everyone I have written an algorithm in which there is a part that has to produce random numbers like this:

a=randi(10,1,4)

b=randi(10,1,4)

c=randi(10,1,4)

I need it to produce different sets of numbers everytime I run the algorithm but it uses the same sets of numbers everytime

can anyone help?

Answer 1

[Guillaume]

In all likelyhood, you're seeding the random number generator with a fixed seed somewhere before calling randi.

Look for a rng(...) instruction and remove it, or insert a rng('shuffle') before calling randi. rng('shuffle') seeds the generator with the current time.

[Iain]

If you aren't setting the random number generator with ANY seed, try ensuring that you provide one based on say, the time of day.

[alexaa1989]

it isn't working with rng and now it is producing not feasible solutions