hello, it's the Morisita Horn Index, which is an ecological index for similarity between two multivariate objects (vegetation samples with species and its abundance) where a value of one indicates completely same relative importance of species in both samples and 0 denotes total absence of any same species.
it can be expressed as a probability: (prob. that an individual drawn from sample j and one from sample k belong to the same species) ------------------------------------------------- = MH-INdex (prob. that two ind. drawn from either sample will belong to same species) it is also covered in library(vegan);?vegdist here it is its complement: 1-MH, which then is a dissimilarity measure best regards, kay -- View this message in context: http://n4.nabble.com/glmer-with-non-integer-weights-tp1837179p2017027.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
