[R] Associative array and How to store a set of objects ?

Gabor Csardi csardi at rmki.kfki.hu
Mon Apr 14 14:39:17 CEST 2008


On Mon, Apr 14, 2008 at 08:32:55PM +0800, Ng Stanley wrote:
> Hi,
> 
> Two questions:
> 
> A) Assuming OB is an object, how do I store 20 of OB in a vector or list ?

replicate(20, OB, simplify=FALSE)

> B) Does R has something similar associative array to Perl ? For example,
> %our_friends = ('best', 'Don', 'good', 'Robert', 'worst', 'Joe');
> $our_friends{'cool'} = "Karen";

our.friends <- list(best="Don", good="Robert", worst="Joe")
our.friends[["cool"]] <- "Karen"

G.

PS. Concerning the second question, what about reading 'Introduction to R'?

> Thanks
> Stanley
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Csardi Gabor <csardi at rmki.kfki.hu>    UNIL DGM



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