Typically SSE is the sum of the squared errors of the prediction in a
regression analysis. The stats component doesn't perform regression,
although it might be a nice feature.

Joel Bernstein

On Fri, Feb 23, 2018 at 12:17 PM, John Smith <localde...@gmail.com> wrote:

> I'm using solr, and enabling stats as per this page:
> https://lucene.apache.org/solr/guide/6_6/the-stats-component.html
> I want to get more stat values though. Specifically I'm looking for
> r-squared (coefficient of determination). This value is not present in
> solr, however some of the pieces used to calculate r^2 are in the stats
> element, for example:
> <double name="min">0.0</double>
> <double name="max">10.0</double>
> <long name="count">15</long>
> <long name="missing">17</long>
> <double name="sum">85.0</double>
> <double name="sumOfSquares">603.0</double>
> <double name="mean">5.666666666666667</double>
> <double name="stddev">2.943920288775949</double>
> So I have the sumOfSquares available (SST), and using this calculation, I
> can get R^2:
> R^2 = 1 - SSE/SST
> All I need then is SSE. Is there anyway I can get SSE from those other
> stats in solr?
> Thanks in advance!

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