I'm using solr, and enabling stats as per this page:
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:
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!