This is exactly what I am looking for.
Thanks all for your help!

Best,
Yuan


On Sat, Jan 11, 2014 at 1:28 AM, Hervé Pagès <hpages@fhcrc.org> wrote:

> Hi Yuan,
>
>
> On 01/10/2014 06:49 PM, Yuan Luo wrote:
>
>> How to find the package of a class given classname?
>> For example, there is a class called GAlignments, I want to do something
>> like
>> attr("GAlignments", "package") that gives you the package where the class
>> is defined? But of course, attr("GAlignments", "package") won't work...
>>
>
> You didn't say whether you wanted to be able to do this
> programmatically.
>
> If that's the case maybe you're lucky and the package where the class
> is defined is already attached to your session. In that case:
>
>
>   > attr(class(new("GAlignments")), "package")
>   [1] "GenomicRanges"
>
> Otherwise, if the package in question is installed but not attached
> you can still do:
>
>   ??`GAlignments-class`
>
> If the package is not installed but you have a vague idea that this
> could be a Bioconductor container, then search the bioconductor
> mailing list:
>
>   http://bioconductor.org/help/mailing-list/
>
> If that still doesn't give you the answer, then you're welcome to ask
> on the list.
>
> Cheers,
> H.
>
> PS: If you're using the current devel version of BioC (requires R devel)
> the GAlignments class has moved to the new GenomicAlignments package.
>
>
>> Thanks for any help!
>> Yuan
>>
>>         [[alternative HTML version deleted]]
>>
>> ______________________________________________
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>> 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.
>>
>>
> --
> Hervé Pagès
>
> Program in Computational Biology
> Division of Public Health Sciences
> Fred Hutchinson Cancer Research Center
> 1100 Fairview Ave. N, M1-B514
> P.O. Box 19024
> Seattle, WA 98109-1024
>
> E-mail: hpages@fhcrc.org
> Phone:  (206) 667-5791
> Fax:    (206) 667-1319
>

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