So you are interested in collection frequency of words.

TermsComponent gives you document frequency of terms. You can modify it to give 
collection frequency info. http://search-lucene.com/m/of5Fn1PUOHU/

--- On Wed, 1/12/11, Juan Grande <juan.gra...@gmail.com> wrote:

> From: Juan Grande <juan.gra...@gmail.com>
> Subject: Re: Term frequency across multiple documents
> To: solr-user@lucene.apache.org
> Date: Wednesday, January 12, 2011, 6:56 PM
> Maybe there is a better solution, but
> I think that you can solve this
> problem using facets. You will get the number of documents
> where each term
> appears. Also, you can filter a specific set of terms by
> entering a query
> like "+field:term1 OR +field:term2 OR ...", or using the
> facet.query
> parameter.
> 
> Regards,
> 
> Juan Grande
> 
> On Wed, Jan 12, 2011 at 11:08 AM, Aaron Bycoffe <
> abyco...@sunlightfoundation.com>
> wrote:
> 
> > I'm attempting to calculate term frequency across
> multiple documents
> > in Solr. I've been able to use TermVectorComponent to
> get this data on
> > a per-document basis but have been unable to find a
> way to do it for
> > multiple documents -- that is, get a list of terms
> appearing in the
> > documents and how many times each one appears. I'd
> also like to be
> > able to filter the list of terms to be able to see how
> many times a
> > specific term appears, though this is less important.
> >
> > Is there a way to do this in Solr?
> >
> >
> > Aaron
> >
> 


      

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