.getPermuteMatrix {ProcMod}

Generate permutation matrix according to a schema.

Description

The permutation schema is defined using the 'how' function. The implementation of this function is inspired from the VEGAN package and reproduced here to avoid an extra dependency on an hidden vegan function.

Usage

.getPermuteMatrix(permutations, n, strata = NULL)

Arguments

permutations

a list of control values for the permutations as returned by the function how, or the number of permutations required.

n

numeric; the number of observations in the sample set. May also be any object that nobs knows about; see nobs methods.

strata

A factor, or an object that can be coerced to a factor via as.factor, specifying the strata for permutation.

Note

Internal function do not use.