Re: [R] Any container in R?

From: Feng Qiu <hustqiufeng_at_sohu.com>
Date: Mon 01 Jan 2007 - 16:22:57 GMT

Hi Duncan:

         Thanks for your hints.
         I'm trying to collect distinct elements in one column in a matrix. 
If there is a map, I can easily build up such a collection. While if using list, I have to check by myself if this element already exists in the collection every time I examine a new entry in the column.

Best,

Feng

> On 1/1/2007 10:17 AM, Feng Qiu wrote:
>> R has list and array to contain elements. But does R have more powerful
>> container, such as "map" as in C++ STL? or is there such a package?
>
> In what way are maps more powerful than lists? You can use names to index
> lists.
>
> The other container in R is the environment; they have fairly strange
> semantics, though.
>
> Duncan Murdoch
>
>



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