This is the default function which determines which method to use in permTREND.
methodRuleTREND1(x, y, exact, Nbound = c(20))a character vector with one of the following values: "pclt","exact.mc"
vector of response scores
group membership vector
logical, TRUE=exact method chosen, FALSE=pclt
gives 'pclt' if length(x) > Nbound
This function determines which of two methods will be used in permTREND;
see that help for description of methods.
When exact=FALSE then returns 'pclt'. When exact=TRUE then returns 'exact.mc'. When exact=NULL then returns either 'exact.mc' if length(x) is less than or equal to Nbound, otherwise returns 'pclt'.
permKS