R help - Nov 2007 - structure vs. matrix

Hi R Gurus!

When creating a matrix, is it better to use the structure function or
the matrix function, please?

Thanks,
Edna Bell

Hi Edna,
>> When creating a matrix, is it better to use the structure function or
the
>> matrix function...?
I hope you have a huge (empty) jar in the kitchen, and that your pantry is
empty.

R isn't too difficult, except if you're trying to do stats (and
don't know
what you are doing --- though I am not suggesting that you don't know how to
do stats;).

## see
?structure
?matrix

A structure is not a matrix.  So, if you want to make a matrix, use
matrix().  Easy.

HTH,
Mark.


Edna Bell wrote:
> 
> Hi R Gurus!
> 
> When creating a matrix, is it better to use the structure function or
> the matrix function, please?
> 
> Thanks,
> Edna Bell
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> 
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On 04/11/2007 1:28 AM, Edna Bell wrote:
> Hi R Gurus!
> 
> When creating a matrix, is it better to use the structure function or
> the matrix function, please?
I'd use the matrix() function.  You can do it with structure(), and your 
code might be a little faster, but it will be harder to read, will break 
if someone ever changes the low-level implementation of matrices, e.g. 
by replacing it with the Matrix class.

Duncan Murdoch