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https://issues.apache.org/jira/browse/SOLR-680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635779#action_12635779
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koji edited comment on SOLR-680 at 9/30/08 9:32 AM:
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Lars, Ryan and Sean -- thank you for your comments and contribution on this!
And thanks again Ryan for Wiki document :)
http://wiki.apache.org/solr/StatsComponent
I was thinking whether I could implement arbitrary function other than sum(),
avg(),... just after I opened this ticket, as Yonik mentioned in this thread:
http://www.nabble.com/Sum-of-one-field-td18815666.html#a18854371, but soon I
couldn't find time to think about it and was apart from this. I'd like to see
your updated patch when I am available, hopefully soon. :)
was (Author: koji):
Lars, Ryan and Sean -- thank you for your comments and contribution on this!
And thanks again Ryan for Wiki document :)
http://wiki.apache.org/solr/StatsComponent
I was thinking whether I could implement arbitrary function other than sum(),
avg(),... just after I opened this ticket, as Yonik mentioned in this thread:
http://www.nabble.com/Sum-of-one-field-td18815666.html#a18854371, but soon I
couldn't find time to think about it and was apart from this. I'd like to see
updated patch when I am available, hopefully soon. :)
> StatsComponent - get min, max, sum, qt, avg of number fields
> ------------------------------------------------------------
>
> Key: SOLR-680
> URL: https://issues.apache.org/jira/browse/SOLR-680
> Project: Solr
> Issue Type: New Feature
> Components: search
> Reporter: Koji Sekiguchi
> Priority: Minor
> Fix For: 1.4
>
> Attachments: SOLR-680.patch, SOLR-680.patch, SOLR-680.patch,
> SOLR-680.patch, SOLR-680.patch
>
>
> StatsComponent - it returns min,max,sum,qt,avg of specified number fields:
> request parameters:
> &stats=on&stats.field=price
> {code:xml}
> <stats>
> <stats_fields>
> <lst name="price">
> <double name="min">10</double>
> <double name="max">30</double>
> <double name="avg">20</double>
> <double name="sum">60</double>
> <double name="qt">3</double>
> </lst>
> </stats_fields>
> </stats>
> {code}
> WRT "stats", the component can output sum and avg, but not sd and var.
> USE CASE:
> StatsComponent can be used to get "market price" of DocSet e.g. rental
> housing site, package tour site.
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