Re: [R] max size of a matrix

From: Prof Brian Ripley <ripley_at_stats.ox.ac.uk>
Date: Tue, 05 Aug 2008 17:13:26 +0100 (BST)

On Tue, 5 Aug 2008, rostam shahname wrote:

> Hi R users,
> I am trying to create a matrix, but R has problem with the size of dim,
> wondering if there is anything that I can do?

No. See ?"Memory-limts", and consider a sparse matrix (e.g. package Matrix).

Had this worked 'a' would have used 8*147456^2 = 174GB of storage, about 10x the R maximum object size.

>
>> a <- diag(147456)
> Error in array(0, c(n, p)) : 'dim' specifies too large an array
>
> Thanks for your help
> Rostam
>
> [[alternative HTML version deleted]]
>
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-- 
Brian D. Ripley,                  ripley_at_stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Received on Tue 05 Aug 2008 - 16:31:10 GMT

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