Internal function to select a predefined method/function available in this package.
select.pcpsmethod(
method = c("mantel", "adonis", "glm", "rda", "gls.marginal", "gls.sequential",
"lme.marginal", "lme.sequential", "none")
)
A predefined method/function available in PCPS package, partial match to "mantel", "adonis", "glm", "rda", "gls.marginal", "gls.sequential", "lme.marginal", "lme.sequential" and "none".