Use a for loop inside a vector

The first part was to make a rectangle vector and the second part is to make a curve vector that uses the data from the recktangle and adds a signal with the maximum amplitude noise. I got the first part down, so, I'm trying to get a vector with a for loop inside of it. What I have for now:

curve= [];
for i=1:numel(recktangle)
   recktangle(i) = recktangle(i) + (rand() * noise);
end
curve= curve(:);

but it says that curve seems to be unused. How do I nest a for loop in an array?

[KL]

what exactly are rectangle vector and curve vector?

[M]

You never update the value of curve except at the end where you last line says "curve remains an empty array".

I guess you have to update curve inside your for loop.

[Una Ib]

First vector has a random number of zeros the second has a random number of ones. These two steps should be repeated N times and then linked together in a new rectangle vector.

Curve vector is a rectangle vector+ a random signal with max. amplitude noise.

[KL]

...First vector has a random number of zeros the second has a random number of ones...

what are the sizes? Please be specific and give a complete explanation. It's always better to create a sample input and expected output.

as far as your explanation on curve vector goes, my answer does exactly that.

Answer 1

[KL]

I'm not sure what you want, but probably something like this (no need for loop, just one line like below),

 curve = recktangle+(rand(size(recktangle))*noise);

[Una Ib]

Thanks!