Analyzing GeneXproTools Models Statistically

Root Mean Squared Error
 
The root mean squared error Ei of an individual program i is evaluated by the equation:

where P(ij) is the value predicted by the individual program i for sample case j (out of n sample cases); and Tj is the target value for sample case j.

For a perfect fit, P(ij) = Tj and Ei = 0. So, the Ei index ranges from 0 to infinity, with 0 corresponding to the ideal.

To evaluate the RMSE of your model both on the training and testing data, you just have to go to the Results Panel after a run and, although it is not shown there, it is also evaluated there and kept for your future reference in the Report Panel.


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