Saving R objects (code) in .R files (R genetic programming)

Question

I\'m using R for genetic programming with the RGP package. The environment creates functions that solve problems. I want to save these functions in their own .R source files. I

Answer 1

You can use dump for this. It will save the assignment and the definition so you can source it later.

R> f <- function(x) x*2
R> dump("f")
R> rm(f)
R> source("dumpdata.R")
R> f
function(x) x*2

Update to respond to the OP's additional request in the comments of another answer:

You can add attributes to your function to store whatever you want. You could add a score attribute:

R> f <- function(x) x*2
R> attr(f, 'score') <- 0.876
R> dump("f")
R> rm(f)
R> source("dumpdata.R")
R> f
function(x) x*2
attr(,"score")
[1] 0.876
R> readLines("dumpdata.R")
[1] "f <-"                                     
[2] "structure(function(x) x*2, score = 0.876)"