Table 1.

Actual parameter values and the corresponding density shapes and gamma priors.

	Actual values		Prior parameters
Density shape	α	β	$a_1$	$a_2$
U-shaped	0.75	0.75	1	0.5
	1.5	0.75	1	0.5
J-shaped	0.75	1.5	1	2
	0.75	2.5	1	2
	1.5	1.5	1	2
	1.5	2.5	1	2
Reversed J-shaped	2.5	0.75	3	0.5
Unimodal	2.5	1.5	3	2
	2.5	2.5	3	2