By definition, if it's primary data (e.g. an annotation package's
annotations), it's not metadata. Data about the data is metadata.
 Depending on what you are treating as primary, there are times when then
term can be highly ambiguous.

However, the only times I have encountered anything explicitly labeled
'metadata' in BioC is when constructing or using annotations, and in these
instances, it has always referred to information about provenance (where
the annotations came from).  I have to believe this is an effort to reduce
confusion.

Hope this makes sense.


--t




On Tue, Jan 29, 2013 at 2:00 PM, Wang Peter <wng.peter@gmail.com> wrote:

> thank you very much, Steven and Tim
>
> But my question is quite simple.
>
>
>
> if
> the metadata == "annotation imformatioin"??? in bioconductor.
>
>
>
>
> --
> shan gao
> Room 231(Dr.Fei lab)
> Boyce Thompson Institute for Plant Research
> Cornell University
> Tower Road, Ithaca, NY 14853-1801
> Office phone: 1-607-254-1267(day)
> Official email:sg839@cornell.edu
> Facebook:http://www.facebook.com/profile.php?id=100001986532253
>



-- 
*A model is a lie that helps you see the truth.*
*
*
Howard Skipper<http://cancerres.aacrjournals.org/content/31/9/1173.full.pdf>

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