Random multiply by negative one

Hello, I bootstrapped a 1000 simulation from my data with replacement and now, I would like to randomly multiply it by one or negative one, but I am not sure how to do that.

My initial guess was to do the following: y3=y2*randi([-1,1],22528,1000), but I guess it will generate pseudorandom integers in this range, which includes zero. Any suggestion on how to do this will be highly appreciated.

Thanks

Alma

Answer 1

[jgg]

Try this:

 A = [1,-1];
 rand_nums = A(randi([1,2],22528,1000));

Answer 2

[Azzi Abdelmalek]

out=2*randi([0 1],22528,1000)-1

Answer 3

[Alma Bezares]

Thank you so much. The code A = [1,-1]; rand_nums = A(randi([1,2],22528,1000));

did the trick. Thanks!

[jgg]

You should accept the answer then, so other people can see the solution!