Hi Rafael.
> Also, I realized that this has the effect of making the mserr of
> species with sample size of 1 equal to the pooled standard deviation.
Yes. This makes sense because our uncertainty about that observation of
the mean should be exactly equal to the population dispersion around the
Hi Klaus,
I will add an option 'method' to this function so that its definition
will be:
is.ultrametric(phy, tol = .Machine$double.eps^0.5, option = 1)
option = 1 => using the criterion you suggested below
option = 2 => using the current 'variance' criterion
And other criteria could be
