Hi John,

Is there any documentation that explains how dataset collections work? I'd
like to learn more about it.

Thanks,
David


On Tue, Jul 29, 2014 at 3:20 PM, John Chilton <jmchil...@gmail.com> wrote:

> Hello Julie,
>
>   Right now Galaxy can implicitly create collections by running a tool
> that takes in a single input or a paired dataset over say a list of
> inputs or a list of paired inputs but tools cannot explicitly create
> dataset collections. I think Galaxy's current capabilities add a lot
> of useful functionality - but say tools that take a big input and
> split it into an arbitrary number of pieces or tools that
> normalize/summarize N inputs simultaneously and produce N outputs
> cannot be represented. A few people made some progress on this at the
> recent GCC Hackathon (https://trello.com/c/ndVQmt3G) and a lot more
> people have made it clear that it is an important feature.
>
> Sorry.
>
> -John
>
>
> On Mon, Jul 28, 2014 at 11:47 AM, julie dubois <dubju...@gmail.com> wrote:
> > Hi all,
> > I'm working with data_collection as type of input in xml files. but I
> > use all the datasets of a collection to compute some results that I
> > want to push in a "data_collection" output.
> > I know how take each dataset of a data_collection input with my
> > script, like this :
> > <configfile name="shscript">
> > ...
> > for $f in $input
> > ...
> > </configfile>
> > where $input is defined by <param name=$input1 type=data_collection
> > collection_type=list... in the top of my xml file.
> >
> > But if my script produce some outputs (number of outputs not defined
> > in advance), how can I populate an output as a data_collection with my
> > shscript and how should I define this output in the xml ?
> >
> > Thanks
> > Julie
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