Table 1.
Simulation results for Scenarios 1 and 2, mean (sd) based on 100 replicates
Subgroup | Scenario 1 | Scenario 2 | |||||||
---|---|---|---|---|---|---|---|---|---|
Proposed | FMRLasso | ICC | BSGSS | Proposed | FMRLasso | ICC | BSGSS | ||
Continuous E variables, a block-diagonal covariance matrix for I features | |||||||||
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2.000 (0.00) | 2.000 (0.00) | |||||||
ARI | 0.820 (0.05) | 0.685 (0.08) | 0.637 (0.17) | 0.722 (0.06) | 0.591 (0.08) | 0.561 (0.13) | |||
Main I effects | |||||||||
TPR | 1 | 1.000 (0.00) | 0.906 (0.19) | 0.524 (0.33) | 0.926 (0.11) | 1.000 (0.00) | 0.768 (0.25) | 0.422 (0.28) | 0.908 (0.14) |
2 | 1.000 (0.00) | 0.908 (0.16) | 0.482 (0.33) | 1.000 (0.00) | 0.760 (0.23) | 0.292 (0.27) | |||
FPR | 1 | 0.000 (0.00) | 0.021 (0.02) | 0.001 (0.00) | 0.780 (0.06) | 0.002 (0.01) | 0.016 (0.02) | 0.003 (0.01) | 0.679 (0.07) |
2 | 0.001 (0.00) | 0.011 (0.02) | 0.001 (0.00) | 0.003 (0.01) | 0.009 (0.01) | 0.001 (0.00) | |||
I–E interactions | |||||||||
TPR | 1 | 1.000 (0.00) | 0.924 (0.16) | 0.691 (0.23) | 0.926 (0.11) | 0.998 (0.01) | 0.823 (0.14) | 0.543 (0.18) | 0.908 (0.14) |
2 | 1.000 (0.00) | 0.936 (0.11) | 0.714 (0.23) | 0.999 (0.01) | 0.873 (0.14) | 0.539 (0.18) | |||
FPR | 1 | 0.006 (0.01) | 0.053 (0.02) | 0.020 (0.01) | 0.784 (0.06) | 0.022 (0.01) | 0.052 (0.01) | 0.025 (0.01) | 0.704 (0.07) |
2 | 0.006 (0.01) | 0.076 (0.02) | 0.020 (0.01) | 0.022 (0.01) | 0.079 (0.01) | 0.024 (0.01) | |||
Discrete E variables, a block-diagonal covariance matrix for I features | |||||||||
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2.000 (0.00) | 2.000 (0.00) | |||||||
ARI | 0.816 (0.06) | 0.700 (0.10) | 0.638 (0.25) | 0.721 (0.06) | 0.618 (0.07) | 0.582 (0.16) | |||
Main I effects | |||||||||
TPR | 1 | 1.000 (0.00) | 0.932 (0.15) | 0.636 (0.36) | 0.934 (0.011) | 0.998 (0.02) | 0.802(0.21) | 0.496 (0.29) | 0.912 (0.13) |
2 | 1.000 (0.00) | 0.886 (0.18) | 0.548 (0.34) | 1.000 (0.00) | 0.736(0.20) | 0.372 (0.27) | |||
FPR | 1 | 0.001 (0.00) | 0.020 (0.03) | 0.003 (0.01) | 0.811 (0.06) | 0.003 (0.00) | 0.017(0.02) | 0.001 (0.01) | 0.716 (0.08) |
2 | 0.001 (0.00) | 0.009 (0.01) | 0.002 (0.00) | 0.002 (0.00) | 0.010(0.02) | 0.003 (0.06) | |||
I–E interactions | |||||||||
TPR | 1 | 0.999 (0.01) | 0.948 (0.12) | 0.701 (0.32) | 0.934 (0.11) | 0.997 (0.02) | 0.855 (0.13) | 0.566 (0.20) | 0.912 (0.13) |
2 | 1.000 (0.00) | 0.948 (0.12) | 0.720 (0.30) | 1.000 (0.00) | 0.892 (0.12) | 0.586 (0.20) | |||
FPR | 1 | 0.027 (0.01) | 0.039 (0.02) | 0.019 (0.01) | 0.815(0.06) | 0.031 (0.00) | 0.038 (0.01) | 0.022 (0.01) | 0.722 (0.08) |
2 | 0.026 (0.01) | 0.063 (0.02) | 0.020 (0.01) | 0.031 (0.00) | 0.065 (0.01) | 0.022 (0.01) | |||
Continuous E variables, a banded covariance matrix for I features | |||||||||
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2.000 (0.00) | 2.000 (0.00) | |||||||
ARI | 0.816 (0.05) | 0.688 (0.08) | 0.657 (0.15) | 0.730 (0.06) | 0.586 (0.11) | 0.557(0.17) | |||
Main I effects | |||||||||
TPR | 1 | 1.000 (0.00) | 0.932 (0.17) | 0.510 (0.29) | 0.932 (0.11) | 0.996 (0.04) | 0.742 (0.25) | 0.398 (0.26) | 0.864 (0.15) |
2 | 1.000 (0.00) | 0.890 (0.15) | 0.490 (0.30) | 1.000 (0.00) | 0.722 (0.25) | 0.316 (0.25) | |||
FPR | 1 | 0.001 (0.00) | 0.023 (0.03) | 0.001 (0.01) | 0.761 (0.07) | 0.002 (0.01) | 0.025 (0.03) | 0.003 (0.01) | 0.669 (0.073) |
2 | 0.001 (0.00) | 0.011 (0.02) | 0.001 (0.00) | 0.002 (0.00) | 0.013 (0.02) | 0.002 (0.01) | |||
I–E interactions | |||||||||
TPR | 1 | 1.000 (0.00) | 0.929 (0.12) | 0.688 (0.22) | 0.932 (0.11) | 0.985 (0.05) | 0.797 (0.19) | 0.528 (0.19) | 0.864 (0.05) |
2 | 0.999 (0.01) | 0.941 (0.09) | 0.708 (0.22) | 0.990 (0.04) | 0.848 (0.17) | 0.543 (0.22) | |||
FPR | 1 | 0.006 (0.01) | 0.054 (0.01) | 0.021 (0.01) | 0.766 (0.06) | 0.019 (0.01) | 0.056 (0.02) | 0.024 (0.01) | 0.675 (0.07) |
2 | 0.007 (0.01) | 0.076 (0.01) | 0.019 (0.01) | 0.020 (0.01) | 0.081 (0.01) | 0.024 (0.01) | |||
Discrete E variables, a banded covariance matrix for I features | |||||||||
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2.000 (0.00) | 2.000 (0.00) | |||||||
ARI | 0.811 (0.06) | 0.699 (0.07) | 0.661 (0.20) | 0.714 (0.06) | 0.610 (0.06) | 0.563 (0.18) | |||
Main I effects | |||||||||
TPR | 1 | 1.000 (0.00) | 0.948 (0.13) | 0.674 (0.31) | 0.932 (0.11) | 1.000 (0.00) | 0.832 (0.19) | 0.496(0.29) | 0.876(0.14) |
2 | 1.000 (0.00) | 0.898 (0.15) | 0.546 (0.30) | 1.000 (0.00) | 0.712 (0.21) | 0.314(0.27) | |||
FPR | 1 | 0.001 (0.00) | 0.019 (0.02) | 0.002 (0.00) | 0.779 (0.06) | 0.002 (0.01) | 0.024 (0.03) | 0.003(0.01) | 0.689(0.08) |
2 | 0.002 (0.01) | 0.010 (0.01) | 0.002 (0.01) | 0.001 (0.00) | 0.012 (0.02) | 0.003(0.01) | |||
I–E interactions | |||||||||
TPR | 1 | 1.000 (0.00) | 0.949 (0.09) | 0.726 (0.26) | 0.932 (0.11) | 1.000 (0.00) | 0.852 (0.13) | 0.550(0.21) | 0.876(0.14) |
2 | 1.000 (0.00) | 0.961 (0.08) | 0.743 (0.24) | 1.000 (0.00) | 0.903 (0.09) | 0.562(0.22) | |||
FPR | 1 | 0.027 (0.01) | 0.037 (0.01) | 0.019 (0.01) | 0.784 (0.06) | 0.031 (0.00) | 0.039 (0.02) | 0.023(0.01) | 0.695(0.07) |
2 | 0.027 (0.01) | 0.062 (0.01) | 0.018 (0.01) | 0.031 (0.00) | 0.067 (0.01) | 0.023(0.01) |
, estimated number of subgroups; ARI, adjusted rand index; TPR, true positive rate; FPR, false positive rate.