twoStripCombined.Rd

% Generated by roxygen2 (4.1.1): do not edit by hand
% Please edit documentation in R/twoStripCombined.R
\name{twoStripCombined}
\alias{twoStripCombined}
\title{Combine two (lattice) strips in one to save space}
\usage{
twoStripCombined(textPos = c("border", "center"), sep = ": ",
  invert = TRUE, which.given, which.panel, factor.levels, var.name,
  strip.names = var.name, bg, ...)
}
\arguments{
\item{textPos}{position of the strip annotation. The \code{"border"}
value indicates that the first conditioning variable is to be aligned
to left strip border and the second to the right strip border. The
\code{"center"} indicates tha the first is to be right aligned to the
strip center and the second to be left aligned to strip center.}

\item{sep}{a strip, to separate variable names and levels when
concatenation is required.}

\item{invert}{logical, \code{TRUE} means that the first is to be
placed on left strip side.}

\item{which.given,which.panel,factor.levels,var.name,strip.names,bg,...}{arguments of \link[lattice]{strip.default}.}
}
\description{
This function allows combining two strips in one to save
space in lattice graphics. It was designed to be used with two
conditioning variables.
}
\examples{
library(lattice)

xyplot(yield~K|N+P, data=npk, type=c("p","a"))

xyplot(yield~K|N+P, data=npk, type=c("p","a"),
       strip=twoStripCombined,
       par.strip.text=list(lines=0.6))

xyplot(yield~K|N+P, data=npk, type=c("p","a"),
       strip=function(...){
           twoStripCombined(textPos="center", sep="=",
                            strip.names=c("Nitr", "Phos"),
                            invert=TRUE, ...)
       },
       par.strip.text=list(lines=0.5),
       par.settings=list(strip.background=list(col="gray75")))
}