with(data, expr, ...)
data
argument.
with()
may use them.
data
object, then in frames 1 and 0, and finally in the attached
Splus databases.
The
with
function has the following methods:
default
,
pframe
.
This is basically a wrapper for the
eval
function
where
data
is used as the
local=
argument
to
eval
. If
data
is a
data.frame
then its column names may be used in the expression.
If
data
is a
pframe
object, then
parameters(data)
may be used in addition
to the column names.
with(fuel.frame, symbols(x=Weight, y=Mileage, circles=Disp., inches=.25))