Table 4.

The estimated parameter values using PSO

Parameters	${\mathit{\alpha }}_{\mathit{c}}$	${\mathit{\alpha }}_1$	${\mathit{\alpha }}_2$	${\mathit{\alpha }}_3$	${\mathit{\phi }}_1$	${\mathit{\phi }}_2$	${\mathit{\lambda }}_3$
Mean	0.0209	0.0900	0.0780	0.3574	0.55	0.5000	0.5000
Std	0.0630	0.1449	0.1839	0.0701	0.2415	0.0000	0.0000

Parameters	${\mathit{\omega }}_1$	${\mathit{\omega }}_2$	${\mathit{\mu }}_1$	${\mathit{\mu }}_2$	${\mathit{\mu }}_3$	${\mathit{\beta }}_1$	${\mathit{\beta }}_2$
Mean	0.0974	0.0127	0.0889	0.0900	0.0700	0.0964	0.9800
Std	0.0275	0.0013	0.1432	0.1449	0.0483	0.0038	0.0000