Storing for loop output that is a matrix 1 x 6387 each iteration in one matrix

So lets say I run the for loop for two iterations the saved values will be a matrix 1 x 12,774.

n1 = 50; % Number of notes plotted

for i = 1:n1
    xx2 = key2note(X,keynum(i),dur(i)); 
    xs = [xx2(i)];
end

spectrogram(xs,'yaxis') 

Answer 1

[Ridwan Alam]

I am assuming that you meant your xx2 has size 1x6387, and you want xs to be of size 1x12774 after two iteration.

n1 = 50; % Number of notes plotted
for i = 1:n1
    xx2 = key2note(X,keynum(i),dur(i)); 
    xs = [xs xx2];
end

[Milton Logo]

Yes. Thank you.