How can I save the values obtain from a for loop in a nx1 vector?

x=0:996;

for x=x+4

t=datarng(x-3:x,1);

avg=sum(t)/4;

"datarng" is a variable which the data I am analyzing is being saved to. What I am doing is taking the average of every for numbers and my goal is construct a new matrix (vector) which has all the average values calculated in it. Any help is appreciated! Thanks!

Answer 1

[Andrei Bobrov]

avd = conv2(datarng(:,1),[1;1;1;1]/4,'valid');

[Bert Kings]

Is there a way that I can do the same thing, but for the standard deviation of every 4 numbers? Thanks so much for your help!

[Andrei Bobrov]

x = datarng(:,1);
n = 4;
nn = numel(x);
out = std(x(hankel(1:nn-n+1,nn-n+1:nn),0,2);