Incorporating biological information in sparse principal component analysis with application to genomic data

BMC Bioinformatics

Table 3 Analysis of the GBM data using Kegg Pathway information. cPVE represents proportions of cumulative variation explained

Method	Non-zero Loadings		cPVE		Subjects correctly classified
	1stPC	2ndPC	1stPC	2ndPC	SVM
PCA	2000	2000	0.1955	0.3175	97
SPCA	240	238	0.0333	0.0591	97
SPC	45	59	0.0215	0.0383	67
Fused sPCA	1644	1410	0.1792	0.2787	123
Grouped sPCA	1330	970	0.1731	0.2652	119

ISSN: 1471-2105