Error while finding peak value and location

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As I try to find the peak value and peak position, the function is not executing for the same because of some error. Please help.
load 'vv.mat'
load 'cc.mat'
for m = 1:numel(vv)
[pks{m},locs{m}]=findpeaks(cc{m}(end,:), vv{m}(end,:));
end
Error using findpeaks
Expected X to be strictly increasing.

Error in findpeaks>parse_inputs (line 236)
validateattributes(Xin1,{'numeric'},{'real','finite','vector','increasing'},'findpeaks','X');

Error in findpeaks (line 135)
= parse_inputs(isInMATLAB,Yin,varargin{:});

Accepted Answer

MJFcoNaN
MJFcoNaN on 23 Jun 2022
Edited: MJFcoNaN on 23 Jun 2022
Hello,
You should sort the "x" variable ("vv" in your code) before calling findpeaks
load 'vv.mat'
load 'cc.mat'
for m = 1:numel(vv)
cc0=cc{m}(end,:);
vv0=vv{m}(end,:);
[vv_s, ind]=sort(vv0);
cc_s=cc0(ind);
[pks{m},locs{m}]=findpeaks(cc_s, vv_s);
end
But then you have to add more limitation on how the peaks look like, for example their height, width, distance and so on. The more details you provide, the better findpeaks works.

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