R code and data files to generate figures presented in Bolnick et al "A multivariate view of the speciation continuum". The datasets for birds (birdspn.csv), frogs (frogspn.csv), lepidoptera (lepspn.c
Evolutionary biologists typically represent clines as spatial gradients in a univariate character (or, a principal component axis) whose mean changes as a function of location along a transect spannin
These data reproduce the controlled simulation of variance-covariance structure of real survey based on a multivariate normal distribution. For each cluster of questions, also called "Construct&q
