construct vectors if cycle

hello!

i need to construct vectors xx and yy. The problem is that at each cycle the past xx and yy is deleted but i want the opposite. i want them to keep the past information and grow at each cycle. what can i do?

i appreciate any help. thank you very much.

Answer 1

[Walter Roberson]

Before the loop,

xx = [];
yy = [];

Then in the loop, change the xx and yy statements to

xx = [xx, x(iPeaks1:iPeaks2)];
yy = [yy, y(iPeaks1:iPeaks2)];