Write text into the margins of a plot

Usage

mtext(text, side=3, line=0, outer=FALSE, at=NULL, adj = NA, ...)

Arguments

text character string to be written.
side on which side of the plot (1=bottom, 2=left, 3=top, 4=right).
line on which MARgin line, starting at 0 counting outwards.
outer use outer margins if available.
at give location in user-coordinates. If length(at)==0 (default), the location will correspond to par("adj").
adj length = 1 or 2 : adjustment in x- (and optionally y-) direction. If adj isn't finite (default), a default is setup, using par("las") (and not par("adj")!
... Further graphical parameters; currently supported are:
cex character expansion factor (default = 1).
col color to use.
font font for text.

Description

text is written in one of the four margins (side) of the plot. line measures the distance outwardly in character size units.

Side Effects

The given text is written onto the current plot.

See Also

title, text, plot.

Examples

plot(1:10, (-4:5)^2, main="Parabola Points", xlab="xlab")
mtext("10 of them")
for(s in 1:4)
    mtext(paste("mtext(.., line= -1, {side, col, font} = ",s,
          ", cex = ", (1+s)/2, ")"), line = -1,
          side=s, col=s, font=s, cex= (1+s)/2)
mtext("mtext(.., line= -2)", line = -2)
mtext("mtext(.., line= -2, adj = 0)", line = -2, adj =0)
##--- log axis :
plot(1:10, exp(1:10), log='y', main="log='y'", xlab="xlab")
for(s in 1:4) mtext(paste("mtext(..,side=",s,")"), side=s)

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