STA 290 Statistical Laboratory
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Within R, type q()
to exit.
Type save.image()
to save your workspace
to the .RData
file.
Type help.start()
to get the html
help to load in a netscape window.
Type, for example, ?lm
to get help on the function lm
.
Type x11()
to open a new graphics
window (or just type a plotting command and one will open automatically).
Type ls()
or objects()
to list the objects (data and functions) in your .RData
file.
Type search()
to see your search
path.
One of the nice additions to R (relative to Splus) is the easy inclusion of
mathematical expressions in plots, using the function expression()
.
Take a look at the examples in the help file for the function legend
,
and consider the following:
plot(rnorm(100),rnorm(100),xlab=expression(hat(mu)[0]),
ylab=expression(alpha^beta),
main=expression(paste("Plot of ", alpha^beta, " versus ", hat(mu)[0])))
You might also want to create an ~/.Rprofile
file. R code in this file will be run anytime you start R, no matter what subdirectory
you start in (unless there's an .Rprofile
within that subdirectory,
in which case that is read instead. Examples of what you may wish to put there
include commands to modify the options and/or load certain packages (libraries).