How to successively fill a vector with for loop?

I have my code set up as follows:

thmaxn = [];
for ang=[0, pi/2, pi, 3*pi/2, 2*pi]
    thmax = phasedist(ang,N,rhoss);
end

Don't worry what the function does, it just gives a value for each angle. I just wondered how I could put each value into the thmaxn vector successively?

Thanks

Answer 1

[Stephen23]

Preallocate the output array and then simply use indexing:

ang = 0:pi/2:2*pi;
thmax = zeros(1,numel(ang));
for k = 1:numel(ang)
    thmax(k) = phasedist(ang(k),N,rhoss);
end