Change units for delta parameter?

[jrasero]

Delta hyperparameter, which defines the minimum distance for a peak to be considered as such, is given in sampling units.

For example, we usually take delta = 200, because for a recording of 400 Hz sampling frequency corresponds to a peak every 0.5 sec at least, i.e., the maximum peaks per minute that we can have with this choice is 120.

Maybe we could express this parameter in terms of peaks per second? This seems more understandable than in sampling units. For example, delta = 200 would correspond to 0.5. Since we are always passing the sampling frequency, we can convert from one to the other and viceversa.