trimming the first and last elements of a vector

let's say that i have a vector of yhat =506x1 and i have an h = 3 value

how do I remove the first 3 elements and the last 3 elements of yhat so that it will be a 500x1 vector.

I currently wrote, yhat(h+1:end-h); but it gives me 6 zeros for the last results, and that is not what i want.

How do i fix this? I just want a new vector of yhat where it is 500x1 because I removed the first 3 and last 3 elements based on the size of h. thank you!

Thank you verym uch

Answer 1

[dpb]

Reassign in place...

yhat=yhat(h+1:end-h);

[Osita Onyejekwe]

but that's exactly what i did...

[Azzi Abdelmalek]

The code is correct

[Image Analyst]

And it works:

yhat = randi(99, 506, 1); % Create sample data.
h = 3;
% Extract from element 4 to element 503
yhat = yhat(h+1 : end-h);
whos yhat;

   Name        Size            Bytes  Class     Attributes
    yhat      500x1              4000  double

Try it - the last 6 elements will not be 0.

[Osita Onyejekwe]

thanks guys!!!

[dpb]

Could be the last 9 were zero before truncating three of them...