. Author manuscript; available in PMC: 2020 Apr 6.

Published in final edited form as: Stat Med. 2018 Dec 26;38(9):1582–1600. doi: 10.1002/sim.8059

TABLE 3.

NIEHS Test Dataset 1: Effects Selected by each of the methods considered (for SNIF, ✓* indicates nonlinearity of the corresponding effect; for VANISH all the selected effects are nonlinear). True active effects are shown in bold (that is, the covariates X₁, X₂, X₄, X₅, X₇, and Z have active effects.)

Main effects									Interaction effects

	X₁	X₂	X₃	X₄	X₅	X₆	X₇	Z

LASSO	✓	✓		✓	✓		✓	✓	LASSO	X₅ × X₇	(X₄, X₅) × Z
HIERNET	✓	✓		✓	✓		✓	✓	HIERNET	X₅ × X₇	X₅ × Z
VANISH	✓	✓			✓		✓	✓	VANISH	X₅ × X₇
IFORM	✓	✓		✓	✓		✓	✓	IFORM	X₅ × X₇	X₁ × X₂
SNIF	✓*			✓	✓		✓*	✓	SNIF