TABLE 1.
Specifications for the 16 simulation scenarios
| Scenarios | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1, 9 | 2, 10 | 3, 11 | 4, 12 | 5, 13 | 6, 14 | 7, 15 | 8, 16 | ||
| n | 200 | 200 | 300 | 300 | 400 | 400 | 1000 | 1000 | |
| p | 400 | 400 | 300 | 300 | 200 | 200 | 100 | 100 | |
| μ(x) | f8(x) | f5(x) | f4(x) | f7(x) | f3(x) | f1(x) | f2(x) | f6(x) | |
| τ(x) | f1(x) | f2(x) | f3(x) | f4(x) | f5(x) | f6(x) | f7(x) | f8(x) | |
|
|
1 | 1/4 | 1 | 1/4 | 1 | 1 | 4 | 4 | |
Note. The 5 rows of the table correspond, respectively, to the sample size, dimensionality, mean effect function, treatment effect function, and noise level. Simulations 1 through 8 use randomized treatment assignment, meaning π(x) = 1∕2. Simulations 9 through 16 have a bias in treatment assignment, specified by 4.