formulaUnimva {mvabund}

Create a List of Univariate Formulas

Description

Create a list of m univariate formulas given a formula with multivariate response of dimension m.

Usage

formulaUnimva(formula, var.subset, split.x=FALSE, intercept=0,
  allow.noresp=FALSE)

Arguments

formula

a formula or a mvformula, the elements are not allowed to be data.frames.

var.subset

optional vector of the variable numbers to use.

split.x

logical, whether explanatory terms that are matrices should be split and each added as a single term. this is useful for plotting formulas.

intercept

numeric, either 1 if an Intercept should be included in the formula or 0 if there shouldn't be an Intercept in the formula.

allow.noresp

logical, whether an empty response is allowed (a list with one element would be returned) or not (would result in an error.)

Value

A list containing m formulas with the univariate responses chosen by var.subset.

Author(s)

Ulrike Naumann and David Warton <[e-mail]>.

See Also

mvformula, mvabund.

Examples

data(spider)
spiddat <- mvabund(spider$abund)
X <- spider$x

formulaUnimva(spiddat~X)