can you help me to vectorize this for loop

final_y = gpuArray(fft_frame.*y2.*y3.*y4);
final_y(1,:) = [];                                  % eliminating first energy row
loc =zeros(3,no_frame);
val = zeros(3,no_frame);
final_y=gather(final_y);
for i = 1:no_frame
[loc(:,i),val(:,i)] = pickpeak(final_y(:,i),3,1);             % Top 3 peaks
end

[Jan]

As long, as you do not mention, what the function pickpeak does, there is no chance to predict, if the function can be vectorized. It does not belong to Matlab's toolboxes, so it would be useful, if you mention, where you did get it from.

It does not seem to be FEX: pickpeaks, because the 2nd input 3 would be illegal.