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. 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 4.

NIEHS Test Dataset 2: Main 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. For example, main effects of X1, X4, and interaction between X12 and Z3 are active.

Main Effects Selected
X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 Z1 Z2 Z3
LASSO ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
HIERNET ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
VANISH ✓ ✓ ✓ ✓
IFORM ✓ ✓ ✓ ✓ ✓ ✓
SNIF ✓ ✓ ✓ ✓* ✓ ✓
Interaction Effects Selected
LASSO X10 × Z2 X12 × Z3 X7 × Z3 X2 × Z3
HIERNET X10 × Z2 X12 × Z3 X7 × Z3 X2 × X13
VANISH X12 × Z3 X2 × Z3 X2 × Z12 X2 × X13 X12 × X13
IFORM X10 × Z2 X12 × Z3 X6 × Z3
SNIF X10 × Z2 X12 × Z3