[R] loading into a list

[Roger D. Peng]

I can think of two possible solutions.  One is to load the .Rdata file 
into an environment and then use the $ and [[ operators to access 
elements.

 > x <- 1; y <- 2
 > save(x, y, file = "xy.RData")
 > e <- new.env()
 > load("xy.RData", envir = e)
 > rm(x, y)
 > e$x
[1] 1
 > e$y
[1] 2

Another way, if you really want a list, is to load into an environment 
(or the workspace) and use mget,

 > e <- new.env()
 > load("xy.RData", envir = e)
 > mget(c("x", "y"), e)
$x
[1] 1

$y
[1] 2

Both of these only work in R >= 1.9.0.

-roger

Tamas Papp wrote:
> I have the following problem.
> 
> Use the same algorithm (with different parameters) to generate
> simulation results.  I store these in variables, eg A, B, C, which I
> save into a file with
> 
> save(A, B, C, file="solution001.Rdata")
> 
> I do this many times.  Then I would like to load the above, but in
> such a manner that A, B, C woule be part of a list, eg
> 
> sol001 <- loadIntoList("solution001.Rdata")
> 
> so that sol001 is a list with elements A, B, C.
> 
> I am looking for a way to implement the above function.  The variables
> are very large and I need a lot of time to compute them, so saving &
> loading the results is the only viable alternative.
> 
> Thanks,
> 
> Tamas
>