mosaic (version 0.4-1)

ladd: Add to Lattice Plots

Description

Simplified lattice plotting by adding additional elements to existing plots.

Usage

ladd(x, col, row, highlight = FALSE, verbose = FALSE)

Arguments

x

callable graphical element to be added to a panel or panels in a lattice plot

col,row

identifies desired panel(s) in multi-panel plots. If missing, all columns or rows are used.

verbose

a logical indicating whether to display some information about modified panels.

highlight

a logical indicating whether to highlight panels as they are being modified.

Details

ladd is simply a wrapper around trellis.focus and trellis.unfocus.

Examples

p <- xyplot(rnorm(100) ~rnorm(100))
print(p)
ladd(panel.abline(a=0,b=1))
ladd(panel.abline(h=0,col='blue'))
ladd(grid.text('Hello'))
ladd(grid.text(x=.95,y=.05,'text here',just=c('right','bottom')))
q <- xyplot(rnorm(100) ~rnorm(100)|factor(rbinom(100,4,.5)))
q <- update(q, layout=c(3,2))
print(q)
ladd(panel.abline(a=0,b=1))
ladd(panel.abline(h=0,col='blue'))
ladd( grid.text("(2,1)",gp=gpar(cex=3,alpha=.5)), 2, 1)
print(q)
ladd( grid.text(paste(current.column(), current.row(),sep=','), gp=gpar(cex=3,alpha=.5)) )
xhistogram( ~eruptions, data=faithful)
ladd(panel.densityplot(faithful$eruptions))