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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/img.R
\name{images}
\alias{images}
\title{Organize several image calls (for visualizing categorical data)}
\usage{
images(
x,
group,
ncol = 2,
byrow = TRUE,
colorbar = 1,
colorbar.space = 0.1,
label.offset = 0.02,
order = TRUE,
colorbar.border = 0,
main,
rowcol = FALSE,
plotfun = NULL,
axis1,
axis2,
mar,
col = list(c("#EFF3FF", "#BDD7E7", "#6BAED6", "#2171B5"), c("#FEE5D9", "#FCAE91",
"#FB6A4A", "#CB181D"), c("#EDF8E9", "#BAE4B3", "#74C476", "#238B45"), c("#FEEDDE",
"#FDBE85", "#FD8D3C", "#D94701")),
...
)
}
\arguments{
\item{x}{data.frame or matrix}
\item{group}{group variable}
\item{ncol}{number of columns in layout}
\item{byrow}{organize by row if TRUE}
\item{colorbar}{Add color bar}
\item{colorbar.space}{Space around color bar}
\item{label.offset}{label offset}
\item{order}{order}
\item{colorbar.border}{Add border around color bar}
\item{main}{Main title}
\item{rowcol}{switch rows and columns}
\item{plotfun}{Alternative plot function (instead of 'image')}
\item{axis1}{Axis 1}
\item{axis2}{Axis 2}
\item{mar}{Margins}
\item{col}{Colours}
\item{...}{Additional arguments to lower level graphics functions}
}
\description{
Visualize categorical by group variable
}
\examples{
X <- matrix(rbinom(400,3,0.5),20)
group <- rep(1:4,each=5)
images(X,colorbar=0,zlim=c(0,3))
images(X,group=group,zlim=c(0,3))
\dontrun{
images(X,group=group,col=list(RColorBrewer::brewer.pal(4,"Purples"),
RColorBrewer::brewer.pal(4,"Greys"),
RColorBrewer::brewer.pal(4,"YlGn"),
RColorBrewer::brewer.pal(4,"PuBuGn")),colorbar=2,zlim=c(0,3))
}
images(list(X,X,X,X),group=group,zlim=c(0,3))
images(list(X,X,X,X),ncol=1,group=group,zlim=c(0,3))
images(list(X,X),group,axis2=c(FALSE,FALSE),axis1=c(FALSE,FALSE),
mar=list(c(0,0,0,0),c(0,0,0,0)),yaxs="i",xaxs="i",zlim=c(0,3))
}
\author{
Klaus Holst
}
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