TITLE(substitute @@ Actual Arguments)
USAGE(
substitute(arg, env=NULL)
)
ALIAS(substitute)
DESCRIPTION(
LANG(substitute) returns the expression which was typed
as the value of a formal argument.
The typical use of this is to create informative
labels for data sets and plots.
The following example shows a simple use of this facility.
It uses the functions LANG(deparse) and LANG(substitute)
to create labels for a plot which are character string versions
of the actual arguments to the function LANG(myplot).
)
EXAMPLES(
myplot <- function(x, y)
        plot(x, y, xlab=deparse(substitute(x)),
                ylab=deparse(substitute(y)))
)
