perm: methodRuleTREND1 – R documentation

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perm

methodRuleTREND1

Rule for determining method for permTREND

Description

This is the default function which determines which method to use in permTREND.

Usage

methodRuleTREND1(x, y, exact, Nbound = c(20))

Arguments

`x`	vector of response scores
`y`	group membership vector
`exact`	logical, TRUE=exact method chosen, FALSE=pclt
`Nbound`	gives 'pclt' if length(x) > Nbound

Details

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'.

Value

a character vector with one of the following values: "pclt","exact.mc"