Re: [R] Dynamic Dictionary Data Type?

From: hadley wickham <h.wickham_at_gmail.com>
Date: Fri 03 Jun 2005 - 00:33:08 EST

> cache results. Other languages usually offer a dictionary data type
> which I can use as an efficient way to dynamically cache already
> calculated results - what's the best way to do this in R?

It really depends on what sort of data you want to cache - if it is fundamentally 1D, use a vector, 2D use a matrix etc. The closest equivalent to dictionary/hashmap is a list - however R's pass a copy semantics might slow things down if you are caching a lot of data.

Hadley Wickham
http://had.co.nz



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