Terry Mu wrote:
hi,
I got some questions on using R,
1. How do I check and edit definition of an object?
for example,
x <- 1:100
You should'nt really redefine assignment, but something like
"<<<-" <- function(xyz4, value) {
v <- deparse(substitute(value))
xname <- deparse(substitute(xyz4))
res <- value
comment(res) <- v
assign(xname, value=res, inherits=TRUE)
}
and then
> "<<<-"(x, abs(sin(3*pi/2)))
> x
[1] 1
> comment(x)
[1] "abs(sin(3 * pi/2))"
You could even redefine <- to be <<<-, but don't
Probably better to use the history mechanism.
Kjetil
then after a while I want to check how x is defined.
list(x) or whatever functions I know only list its
content, but I want to see its definition, without
scrolling up and down, and edit it like "fixing" a
function.
2. How to save my work in current session as a nice
script?
again, I want to save objects as they are defined, not
numbers, other than copy / paste. I tried dump(), etc.
In another word, how do you work with R?
Thanks,
Terry
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Kjetil Halvorsen.
Peace is the most effective weapon of mass construction.
-- Mahdi Elmandjra
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