R help - Feb 2010 - eval function with javascript-semantics possible in R?

Dear r-helpers,

I am looking for an R-equivalent for the eval-function in javascript which
can
interpret a string as code on runtime, thereby allowing things like

for (i in c(1:2))
{

eval(items + "i") <- read.csv(eval(filename+ i),
dec=",");

}

which would execute (with filename="testfile"):

items1 <- read.csv(testfile1, dec=",");
items2 <- read.csv(testfile2, dec=",");


The way I intend to use it is to define a string list containing names of
date.frames,
and interate this list to perform some function:

createTable <- function(latentVariableNames)
{
for (currentName in names(latentVariableNames))
{
doSomethingWith(currentName)
 }
}


Would be grateful for any help!

Chaehan

	[[alternative HTML version deleted]]

Try this:

fileName <- "testfile%s"
lapply(sprintf(fileName, 1:2), read.csv, dec = ",")

On Wed, Feb 10, 2010 at 5:28 PM, Chaehan So <chaehan.so at gmail.com>
wrote:
> Dear r-helpers,
>
> I am looking for an R-equivalent for the eval-function in javascript which
> can
> interpret a string as code on runtime, thereby allowing things like
>
> for (i in c(1:2))
> {
>
> eval(items + "i") <- read.csv(eval(filename+ i),
dec=",");
>
> }
>
> which would execute (with filename="testfile"):
>
> items1 <- read.csv(testfile1, dec=",");
> items2 <- read.csv(testfile2, dec=",");
>
>
> The way I intend to use it is to define a string list containing names of
> date.frames,
> and interate this list to perform some function:
>
> createTable <- function(latentVariableNames)
> {
> for (currentName in names(latentVariableNames))
> {
> doSomethingWith(currentName)
> ?}
> }
>
>
> Would be grateful for any help!
>
> Chaehan
>
> ? ? ? ?[[alternative HTML version deleted]]
>
> ______________________________________________
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> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O