[R] beginner Q: hashtable or dictionary?

Christos Hatzis christos at nuverabio.com
Mon Jan 30 03:47:24 CET 2006


I was wondering if there is an easy way to extend this to implement a 2-D
hash, i.e. 2-way indexing? 

> x[["a"]][["b"]] <- "something"

Thanks.

Christos Hatzis

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of jim holtman
Sent: Sunday, January 29, 2006 8:39 PM
To: context grey
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] beginner Q: hashtable or dictionary?

use a 'list':


> x <- list()
> x[['test']] <- 64
> x[['next one']] <- c(1,2,3,4)
> x
$test
[1] 64

$"next one"
[1] 1 2 3 4

> x[['test']]
[1] 64
>



On 1/29/06, context grey <mobygeek at yahoo.com> wrote:
>
> Hi,
>
> Is there something like a hashtable or (python) dictionary in R/Splus?
>
> (If not, is there a reason why it's not needed / typical way to 
> accomplish the same thing?)
>
> Thank you
>
> ______________________________________________
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>



--
Jim Holtman
Cincinnati, OH
+1 513 247 0281

What the problem you are trying to solve?

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