Ok so with this patch you have something like this. facet=true&facet.field=weight&f.weight.facet.statistical=true
This will bring the regular facet info, like: <int name="1">5</int> <int name="2">2</int> <int name="3">1</int> and then will add the following: <lst name="statistics"> <str name="max">3</str> <str name="min">1</str> <double name="mean">1.5</double> <double name="sd">0.7559289460</double> <double name="cv">0.5039526307</double> </lst> So you get the max and min value as well as the CV, SD and Mean if the field is numeric. On Fri, May 30, 2008 at 12:58 PM, Uri Boness <[EMAIL PROTECTED]> wrote: > I guess, to generalize the idea, is to have some support for aggregation > functions. average anyone ;-) ? It would also be very useful to be able to > define the field that is being aggregated. For example, in a flight > reservation web site we developed we needed to show facets on different > flight fields (e.g. connections count, departure/arrival times, etc..) but > next to each facet value we needed to show the cheapest flight price. > > cheers, > Uri > > > Otis Gospodnetic wrote: > >> Don't know what exactly I mean(t), and can't think of some appropriate >> function, but my thinking was roughly: but what if we want to function foo, >> and function foo has not been implemented. Can I write my own foo function >> and plug it in somewhere? I'm theorizing though... I'll look at the patch >> later. >> >> Otis >> -- >> Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch >> >> >> ----- Original Message ---- >> >> >>> From: Jonathan Ariel <[EMAIL PROTECTED]> >>> To: solr-user@lucene.apache.org >>> Sent: Friday, May 30, 2008 3:36:21 PM >>> Subject: Re: Getting maximum and minimum values of a field >>> >>> What do you mean? Right now you send an extra parameter >>> f.weight.facet.statistical=true and it will add statistical information >>> to >>> the facet field response. >>> >>> What I don't like is that I made the the changes to the SimpleFacet class >>> itself, it would nicer to have the ability to specify a different >>> strategy >>> (different class) instead. So the code won't grow too much and we don't >>> have >>> lots of ifs. >>> >>> >>> >>> On Fri, May 30, 2008 at 10:31 AM, Otis Gospodnetic < >>> [EMAIL PROTECTED]> wrote: >>> >>> >>> >>>> Was thinking... how about making those functions pluggable? Doable? >>>> >>>> Otis >>>> -- >>>> Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch >>>> >>>> >>>> ----- Original Message ---- >>>> >>>> >>>>> From: "[EMAIL PROTECTED]" To: solr-user@lucene.apache.org >>>>> Sent: Friday, May 30, 2008 3:56:14 AM >>>>> Subject: Re: Getting maximum and minimum values of a field >>>>> >>>>> I know that I would definately be interested in that. :) >>>>> >>>>> /Jimi >>>>> >>>>> Quoting Jonathan Ariel : >>>>> >>>>> >>>>> >>>>>> Ok. So I have a version of solr with a small modification to the >>>>>> >>>>>> >>>>> SimpleFacet >>>> >>>> >>>>> class where you can send a parameter to tell that you want some more >>>>>> >>>>>> >>>>> info. >>>> >>>> >>>>> It'll bring back a list with the max and min values as well as the SD, >>>>>> >>>>>> >>>>> CV >>>> >>>> >>>>> and Mean for the facet values. >>>>>> If you are interested I could generate a patch and add it to JIRA. >>>>>> >>>>>> What do you think? >>>>>> >>>>>> Jonathan >>>>>> >>>>>> On Wed, May 28, 2008 at 12:58 AM, Jonathan Ariel wrote: >>>>>> >>>>>> >>>>>> >>>>>>> Hi!I'm looking for a way to get the maximum and minimum value of a >>>>>>> >>>>>>> >>>>>> field >>>> >>>> >>>>> (like price) in a specific query. First I thought about using facet >>>>>>> >>>>>>> >>>>>> for >>>> >>>> >>>>> that, but since price may have lots of different and unique values, a >>>>>>> >>>>>>> >>>>>> facet >>>> >>>> >>>>> is not a good idea. >>>>>>> Any thoughts about how can I achieve this? >>>>>>> >>>>>>> Thanks! >>>>>>> >>>>>>> Jonathan >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>> >>> >> >> >> > >
