Should cpt.var allow minseglen = 1?

[Eric6346]

For the Normal assumption with unknown mean, assuming the length of the time series is at least 2, cpt.var should allow segments of length 1. This would rarely make any difference in practice, but in theory, I don't think there's anything wrong with segments of length 1.

[rkillick]

Thanks for raising this. I think that you are correct that with a global mean we can have the minimum segment length at 1. We would need to catch a variance of 0 if a single datapoint has the same value as the global mean but that is doable. I'll put it on the list of things to do.