A Novel Conformable Fractional Nonlinear Grey Bernoulli Model and Its Application

Table 9

Error metrics of CO₂ emissions in China.

Fitting	FANGM	FAGM	NGMO	NGM	CFNGBM	FANGBM
MAE	14.7581	18.8077	17.8016	18.5138	15.190	15.611
MSE	349.5036	4826.52	493.6639	13950.48	396.77	410.78
MAPE	1.0421	1.4362	1.3239	4.7964	1.0909	1.150
RMSPE	1.0421	1.9368	3.2305	1.6429	1.4800	1.520
R	0.9987	0.9948	0.9982	0.9982	0.9985	0.9986
Prediction	FANGM	FAGM	NGMO	NGM	CFNGBM	FANGBM
MAE	53.6342	65.7712	712.0148	111.4319	28.918	82.48
MSE	3371.48	4826.5	13950.48	11499.00	1242	7506
MAPE	2.3264	2.8566	4.7964	4.3017	1.2633	3.569
RMSPE	2.512	3.0094	5.0409	4.5704	1.5344	3.731
R	0.9868	0.9867	0.9885	0.9885	0.9866	0.9872