Utilizing "maxk" function in series of vectors

Hi. I used "findpeaks" function, and get peak datas in vector(pks, locs): "locs" means the X value.

And I wanna get 4 peak datas in vector in order to "locs" value like the loaded picture in red grid (in the range of 1<locs<10).

But according to the present code, I can only get seperate "maxk" values for each pks and locs.

How can I get desirable vector array like the picture?

for n=1:col-2
    y=numbers(:,col);                     
    ys=smooth(y,50,'sgolay',5);
    [pks,locs] = findpeaks(ys,x,'MinPeakDistance',0.5);
    A{n}=[pks,locs];
    B{n}=maxk(A{n,1}(locs>1&locs<10,:),4);
end

Answer 1

[Matt J]

for n=1:col-2
    y=numbers(:,col);                     
    ys=smooth(y,50,'sgolay',5);
    [pks,locs] = findpeaks(ys,x,'MinPeakDistance',0.5);

    [~,idx]=maxk( pks(locs>1&locs<10) ,4);
    
    A{n}=[pks,locs];
    B{n}=A{n}(idx,:);
end

[Daeyeon Koh]

Hi Matt, and thank you for your help.

I understand usability of indexing.

By the way, although I set the locational range (locs>1&locs<10), it looks like "locs>1" doesn't work.

(the picture below is a result when sorting idx: sort(idx))

How to solve this problem?

[Matt J]

To troubleshoot, we need to see pks and locs. I suggest attaching them in a .mat file.