Figure 5
The horizontal axis represents Real Value in watts per metre from 0 to 800. The vertical axis represents Predicted Value in watts per metre from 0 to 800. Each panel includes a diagonal reference line for equal real and predicted values. In the Training Set, the points cluster closely around the line. R squared is 0.997, mean absolute error is 3.37 watts per metre, root mean squared error is 5.80 watts per metre and mean relative error is 3.70 per cent. In the Validation Set, R squared is 0.992, mean absolute error is 5.39 watts per metre, root mean squared error is 8.93 watts per metre and mean relative error is 6.52 per cent. In the Test Set, R squared is 0.993, mean absolute error is 4.37 watts per metre, root mean squared error is 7.74 watts per metre and mean relative error is 4.40 per cent.Surrogate predictions against real power outputs for the training, validation and test sets