make Xpar.workhorse

Implements [setup_Xpar] for the workhorse model

# S3 method for class 'workhorse'
setup_Xpar(Xname, pars, i, Xopts = list())

Arguments

Xname

a character string

pars

an xds object

i

the host species index

Xopts

a list

Value

a [list] vector