[Octave-bug-tracker] [bug #45056] pkg signal: peak detection not working for very simple and smooth data

[Juan Pablo Carbajal]

Follow-up Comment #2, bug #45056 (project octave):

Assuming you called:


[p,l,e] = findpeaks(y,"MinPeakDistance",100);


Indeed it fails to discover the peaks. This is due to the fact that your
signal is highly oversampled. you can subsample it ot improve results, but I
couldn't get somethign really good. therefore I improved findpeaks to consider
the case of oversampled data.

You can wait for the next release of singal, but since it is really a quick
fix, you can edit your findpeaks.m:
Change line 157 to read


idx = find (df1.*[df1(2:end); 0] <= 0 & [df2(2:end); 0] < 0);


@devs: please close this bug.


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