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Writes overall titles and subtitles after a multiple image plot is drawn.
If par()$oma==c(0,0,0,0)
, title
is used instead of mtext
, to draw
titles or subtitles that are inside the plotting region for a single plot.
mtitle(main, ll, lc,
lr=format(Sys.time(),'%d%b%y'),
cex.m=1.75, cex.l=.5, ...)
nothing
main title to be centered over entire figure, default is none
subtitle for lower left of figure, default is none
subtitle for lower center of figure, default is none
subtitle for lower right of figure, default is today's date in format
23Jan91 for UNIX or R (Thu May 30 09:08:13 1996 format for Windows).
Set to ""
to suppress lower right title.
character size for main, default is 1.75
character size for subtitles
other arguments passed to mtext
Frank Harrell
Department of Biostatistics, Vanderbilt University
fh@fharrell.com
plots
#Set up for 1 plot on figure, give a main title,
#use date for lr
plot(runif(20),runif(20))
mtitle("Main Title")
#Set up for 2 x 2 matrix of plots with a lower left subtitle and overall title
par(mfrow=c(2,2), oma=c(3,0,3,0))
plot(runif(20),runif(20))
plot(rnorm(20),rnorm(20))
plot(exp(rnorm(20)),exp(rnorm(20)))
mtitle("Main Title",ll="n=20")
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