ecg.ecg sometimes duplicates R peaks

[stefperf]

The function ecg.ecg sometimes reports the same R peak twice in a row, which may cause users' own downstream processing to fail (by calculating an R-R distance of zero). The corresponding heartbeat wave templates also get duplicated.
This happens, for example, at index 33 & 34 of the returned out['rpeaks'] and out['templates'] when the attached ecg is given as input.

ecg_resulting_in_duplicated_rpeaks.npy.zip

[capcarr]

Hi @stefperf
Could you please indicate the sampling frequency of the signal, and the version of biosppy that you have installed?

[stefperf]

Biosppy version = 0.5.0
sampling frequency = 300 Hz
(sorry for not realizing myself that this data was also needed)