[R-sig-eco] problem using reshape package

[Gavin Simpson]

On Thu, 2009-07-09 at 13:37 +0200, Maria Dulce Subida wrote:
> Hello everyone!
<snip />
>  However, when I use the same code in my real data set which is considerably
> larger (73 sites and 7 replicates for site, resulting in a molten matrix of
> 14469 x 4), the cast function does some kind of aggregation (in fact it
> advices of an aggregation using the default fun.aggregate) that I was not
> able to understand.

What was the actual warning/message? Something like:

"Aggregation requires fun.aggregate: length used as default"

If the simple example works, but not on the full set of data then there
must be something about your larger data that is not included in your
simple example.

Check that you don't have a species recorded twice or more within
replicate as that may be why reshape is aggregating.

HTH

G

>  I also tried to split my original data frame in order to
> get molten matrices smaller than 5500x4, but I got the same problem.
> 
> Could anyone help me with this?
> 
>  
> 
>  (I use R 2.8.1 for Windows)
> 
>  
> 
> Thank you very very much in advance!
> 
>  
> 
> 
> 
> Cheers,
> 
>  
> 
> Dulce
> 
>  
> 
>   
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> 
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> 
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