Hi Nicolas,
On Tue, May 10, 2011 at 12:29 PM, Nicolas Servant
<[email protected]> wrote:
> Thanks a lot. It works but then, do you how I can have access to the
> result !
> For instance :
>>g$V1
> [1]Error: 'getCharCE' must be called on a CHARSXP
Hmm ... this works for me:
R> dt <- data.table(
reads=c(
"1279_1000_530_F3-ad",
"1279_1000_530_F3-ad",
"1279_1000_940_F3-ad",
"1279_1000_940_F3-ad",
"1279_1018_1051_F3-ad"),
annot=c(
"Simple_repeat",
"LINE",
"snRNA",
"snRNA",
"Simple_repeat"),
key='reads')
R> g <- dt[, paste(annot, collapse=','), by=reads]
R> g$V1
[1] "Simple_repeat,LINE" "snRNA,snRNA" "Simple_repeat"
What are you trying exactly?
What is your sessionInfo()?
-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
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