Reshape the vector as indexed matrix.

I need to reshape each row vector in 'x' to the 2D matrix as indexed in 'idx'. I have written the code and working fine. But it takes more time as the number of rows in x is high. Is there any way to reduce the execution time?

x=ones(4732,28000);

idx = buffer(1:28000,10,5,'nodelay');

tic

for i=1:4732

x1=x(i,:);

y=x1(idx);

end

toc

Elapsed time is 1.450427 seconds.

Answer 1

[Alex Mcaulley]

Yes, just removing the for loop because this loop doesn't do anything in your code.