Hi Nicole,
plotrix is intended to be modular, that is, it builds plots step by step.
This makes it easier to understand code that you haven't written or haven't
seen for a while. Here is an example showing how to change the font using
par():
library(plotrix)
plot(0,type="n",xlim=c(0,1),ylim=c(-1,0))
par(font=3)
legendg(0.115,-0.055,legend=c("Pan troglodytes","Macaca mulatta",
"Saguinus oedipus","Lemur catta","Galago senegalensis"),
pch=list(c(15,0),c(16,1),c(17,2),c(18,5),c(19,10)),
col=list(c("royalblue","skyblue1"),
c("chocolate","gold"),c("deeppink","lightpink"),
c("black","grey"),c("forestgreen","lightgreen")))
par(font=1)
legendg(0.45,-0.7,legend=c("Pan troglodytes","Macaca mulatta",
"Saguinus oedipus","Lemur catta","Galago senegalensis"),
pch=list(c(15,0),c(16,1),c(17,2),c(18,5),c(19,10)),
col=list(c("royalblue","skyblue1"),
c("chocolate","gold"),c("deeppink","lightpink"),
c("black","grey"),c("forestgreen","lightgreen")))
There are 4 or 5 preset font types built into R (normal, bold, italic,
bolditalic and maybe symbol). You can also change the base font using the
family= argument to par(), but that's quite a bit more complicated.
Jim
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