Table 4 Sample size estimates (standard deviations) for the proposed method and the Tibshirani [10] permutation method under a correlated model with effect size 2.a
From: Power and sample size estimation in microarray studies
Pilot study of group size 4 | Pilot study of group size 6 | Entire data of size 62 | |||||
|---|---|---|---|---|---|---|---|
π 1 | λ 0 | n b | n c | n d | n c | n d | n e |
5% | 60% | 9 | 12.2(2.931) | 20.2(6.529) | 12.7(2.193) | 14.9(3.347) | 9.5 |
70% | 9 | 13.1(2.848) | 21.6(6.209) | 13.4(2.330) | 15.9(3.504) | 10.3 | |
80% | 10 | 14.3(3.017) | 23.6(6.399) | 14.4(2.335) | 17.2(3.547) | 11.5 | |
90% | 12 | 16.3(2.997) | 27.1(6.303) | 16.1(2.365) | 19.5(3.559) | 13.7 | |
10% | 60% | 8 | 10.9(2.409) | 15.7(4.664) | 11.5(2.015) | 12.5(2.828) | 8.1 |
70% | 8 | 11.8(2.544) | 16.8(4.858) | 12.1(2.096) | 13.4(2.971) | 8.8 | |
80% | 9 | 13.0(2.601) | 18.6(4.809) | 13.0(2.033) | 14.4(2.852) | 9.8 | |
90% | 11 | 14.7(2.944) | 21.5(5.250) | 14.6(2.275) | 16.4(3.099) | 11.8 | |
20% | 60% | 7 | 9.8(2.184) | 12.2(3.608) | 10.3(1.832) | 10.4(2.390) | 6.7 |
70% | 7 | 10.4(2.236) | 12.8(3.675) | 10.7(1.899) | 10.9(2.446) | 7.3 | |
80% | 8 | 11.4(2.414) | 14.2(3.709) | 11.6(1.995) | 11.9(2.506) | 8.2 | |
90% | 9 | 13.1(2.515) | 16.5(3.902) | 13.0(2.074) | 13.6(2.603) | 9.9 | |