On 15/03/2012 8:53 AM, mrzung wrote:
hi
I'm making some program and it need to be hidden.
it's not commercial purpose but it is educational,
so i do want to hide the code of function.
for example,
if i made following function:
a<-function(x){
y<-x^2
print(y)
}
i do not want someone to type "a" and take the code of the function.
is there anyone who can help me?
R has no explicit support for that. If your function is written in R
code, it won't be hard to find the source. So you could write your
function in C and not distribute the source (assuming all of your users
are on one platform), or you could write obscurely so that it's not
obvious what you are doing, e.g.
a <- function(x) {
eval(parse(text=somestring))
}
environment(a) <- new.env()
environment(a)$somestring <- "y <- x^2; print(y)"
However, this won't slow down anyone who knows about the debug() function.
Duncan Murdoch
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