Thank you! I’ll look into it further and figure out how to get RMSE in the evaluation.
James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504 USA
616 450 8653
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Yi Zhang
Sent: Sunday, March 24, 2013 9:05 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: RE: [EnergyPlus_Support] Proper use of R-squared evaluation for energy use
Jim,
I am not sure if the way you calculated R squared is correct. See the attached spreadsheet with scatter plots on which the trend lines with R2s are shown. In general, it does not make sense to pool different data sets for one regression analysis, unless you have reasons to believe that the data sets are measuring the same thing, and
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