A Novel Hybrid Model for Short-Term Wind Speed Forecasting Based on Twice Decomposition, PSR, and IMVO-ELM

Table 1

Statistical analysis of each dataset.

Datasets		Mean (m/s)	Max (m/s)	Min (m/s)	Std	Skewness	Kurtosis
A	All samples	5.914	16.810	0.400	2.794	1.104	4.164
	Training data	6.212	16.810	1.240	2.745	1.112	4.150
	Testing data	2.936	4.740	0.400	0.857	0.022	2.899
B	All samples	11.138	21.520	4.680	2.858	0.522	2.985
	Training data	11.046	21.520	4.680	2.904	0.587	3.032
	Testing data	12.057	16.940	6.890	2.159	0.010	2.800
C	All samples	6.268	12.490	0.730	2.036	0.578	3.219
	Training data	5.989	12.490	0.730	1.878	0.707	3.956
	Testing data	9.057	12.400	5.570	1.348	-0.067	3.114
D	All samples	8.511	20.000	1.330	2.428	0.720	3.970
	Training data	8.388	20.000	1.330	2.405	0.779	4.208
	Testing data	9.744	15.920	4.640	2.327	0.381	2.944