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Table 4

Formal and virtual objective function values (m) for the Yartan 4 matrix, m = 48, n = 4, μ = 0

Method	Objective function	Number of entries in the test set
Method	Objective function	τ = 10	τ = 18	τ = 24
B₀	Formal	13.97	13.87	13.93
B₀	Virtual	13.27	14.53	13.94
Additive model	Formal	0.41	0.41	0.40
Additive model	Virtual	0.67	0.59	0.58
B₁	Formal	0.38	0.38	0.39
B₁	Virtual	0.62	0.55	0.49
B₂	Formal	0.10	0.10	0.08
B₂	Virtual	0.28*	0.23*	0.30*
B₃	Formal	0.06	0.06	0.04
B₃	Virtual	0.60	0.53	0.39
B₄	Formal	0.00	0.00	0.00
B₄	Virtual	0.60	0.53	0.38
ICR	Virtual	0.28*	0.23*	0.30*

Method	Objective function	Number of entries in the test set
Method	Objective function	τ = 10	τ = 18	τ = 24
B₀	Formal	13.97	13.87	13.93
B₀	Virtual	13.27	14.53	13.94
Additive model	Formal	0.41	0.41	0.40
Additive model	Virtual	0.67	0.59	0.58
B₁	Formal	0.38	0.38	0.39
B₁	Virtual	0.62	0.55	0.49
B₂	Formal	0.10	0.10	0.08
B₂	Virtual	0.28*	0.23*	0.30*
B₃	Formal	0.06	0.06	0.04
B₃	Virtual	0.60	0.53	0.39
B₄	Formal	0.00	0.00	0.00
B₄	Virtual	0.60	0.53	0.38
ICR	Virtual	0.28*	0.23*	0.30*