[Retracted] Research on Probability Distribution of Short-Term Photovoltaic Output Forecast Error Based on Numerical Characteristic Clustering

Table 7

Accuracy evaluation of different models.

	Model	R^2	RMSE
Class I small error	3GGMM	0.9856	0.0756
	Laplace	0.9326	0.8993
	t-distribution	0.9795	0.6865
	Normal distribution	0.8003	1.8454
Class II small error	3GGMM	0.9991	0.1027
	Laplace	0.5173	1.9803
	t-distribution	0.9675	0.4952
	Normal distribution	0.7264	1.5314
Class III small error	3GGMM	0.9023	0.3785
	Laplace	0.4802	0.8695
	t-distribution	0.7203	0.6263
	Normal distribution	0.3254	0.9886
Class I large error	3GGMM	0.9995	0.1132
	Laplace	0.9348	0.4165
	t-distribution	0.9951	0.1403
	Normal distribution	0.9951	0.1406
Class II large error	3GGMM	0.9601	0.1385
	Laplace	0.7784	0.4625
	t-distribution	0.8728	0.3098
	Normal distribution	0.8756	0.3178