[datatable-help] data.table - grouping character values

[Steve Lianoglou]

On Tue, May 10, 2011 at 1:52 PM, Nicolas Servant
<Nicolas.Servant at curie.fr> wrote:
> Indeed, your example also works on my session ... it seems to be linked
> to one of my reads features.
> Because even with my data
>
>>g$V1
>
>  [1]Error: 'getCharCE' must be called on a CHARSXP
>
>>head(g)$V1
> [1] "Simple_repeat,LINE" "snRNA,snRNA"        "Simple_repeat"
>
>
>
> Finally I found it but data.table really doesn't like it :)
>> dt["1335_868_1708_F3-ad"]
>
>  *** caught segfault ***
> address (nil), cause 'unknown'

Ouch ... here's where Matthew will likely have to step in ;-)

Out of curiosity, how big is your data.table, ie. how many rows and columns?

-steve

-- 
Steve Lianoglou
Graduate Student: Computational Systems Biology
 | Memorial Sloan-Kettering Cancer Center
 | Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact