Peter - I realized that this is not very clear. Threshml can analyze
multiple continuous & discrete characters, but the discrete characters
must be binary. threshBayes has the same limitation, but is also limited
to only two traits (binary-binary, binary-continuous, or
continuous-continuous). -
Hi Peter.
I'm not sure if this is what you mean, but Felsenstein (2005, 2012) has
a method for estimating the correlation between discrete characters or a
discrete and a continuous character in which the discrete trait is
modeled using the threshold model from quantitative genetics. There is a