. Author manuscript; available in PMC: 2011 Mar 23.

Published in final edited form as: Ann Stat. 2010 Jan 1;38(6):3605–3629. doi: 10.1214/10-AOS821

Table 3.

Mean Square Error(MSE) of the PC regression based on gene-expression microarray data simulation with and without shrinkage adjustment. 1,000 simulation were conducted. Each entry in the table represents mean of the MSE with standard error in parentheses

n	g	Test Data without Adjustment	Test Data with Adjustment	Training Data
100	150	1.97(0.256)	1.70(0.284)	1.61(0.284)
100	300	1.63(0.230)	1.17(0.167)	1.12(0.158)
100	500	1.43(0.204)	1.07(0.157)	1.03(0.147)
100	1000	1.22(0.182)	1.03(0.148)	0.99(0.142)
200	150	1.73(0.159)	1.33(0.133)	1.30(0.131)
200	300	1.39(0.139)	1.08(0.105)	1.07(0.110)
200	500	1.24(0.131)	1.04(0.105)	1.01(0.101)
200	1000	1.10(0.114)	1.02(0.101)	1.00(0.101)