How to change two variables at same time in a loop?

So i have something like:

for k = 1:nexecucoes

    for i = 1:t*n
        for v = 1:n
            for j = 1:m

                Pt(i,j,k) = 0.0116*r(v,j,k)*t*icorr;
            end
        end
    end
end

And what i would like, is that when 'i' changes to i=2, 'v' changes also to v = 2.

It´s like, when i have i=1, v=1; i=2, v=2; i=3, v=1; i=4, v=2, and so on.

Can someone help me?

Answer 1

[Star Strider]

I would define ‘v’ within the loop as:

v = (1.*(rem(i,2)==1)) + (2.*(rem(i,2)==0));

Your loops would then become:

for k = 1:nexecucoes
    for i = 1:t*n
        v = (1.*(rem(i,2)==1)) + (2.*(rem(i,2)==0));
        for j = 1:m
            Pt(i,j,k) = 0.0116*r(v,j,k)*t*icorr;
        end
    end
end

if I understand correctly what you want to do.

[Pedro Vicente]

It's exactly what i want. thank you.

Tell me something, in this case i wanted v =1 or v = 2 because n = 2.

But if i have a n = 4, i would like to have i = 1 v =1, until i =4 v = 4, and then v comes back to 1.

Like:

i= 1 v=1

i =2 v=2

i=3 v=3

i=4 v=4

i=5 v=1

i=6 v=2 and so on

Do you know how can i make this?

[Star Strider]

This took some experimenting to develop.

I believe it will do what you want:

i = 1:15;                                   % Create Vector To Test
v = ceil(rem(i,4.01));                      % Calculate ‘v’

Check = [i; v]

Check =

       1     2     3     4     5     6     7     8     9    10    11    12    13    14    15
       1     2     3     4     1     2     3     4     1     2     3     4     1     2     3

[Pedro Vicente]

Yeah, this helped me! Thanks

[Star Strider]

As always, my pleasure!