You may have figured this out already, but you can get a "call" object
from parse() by extracting its first element, as in
mycurveC <-
function(x,from=1,to=10){
xloc <- parse(text=x)[[1]]
do.call("curve",list(expr=xloc,from=from,to=to))
}
mycurveC("(x-4) ** 2")
This doesn't address the co
Full_Name: Georgi Boshnakov
Version: 2.10.1pat
OS: Windows XP
Submission from: (NULL) (130.88.123.205)
When calling programmatically function curve() from package:graphics I
experienced some trouble since it reports
stop("'expr' must be a function or an expression containing 'x'")
eve
