Skip to main content

Table 5 Analysis of NCI data: number of zero loadings

From: Super-sparse principal component analyses for high-throughput genomic data

Principal component scores Z 1 Z 2 Z 3 Z 4 Z 5 Z 6 Z 7 Z 8
PCA
Number of nonzero loadings 21011 20385 19226 21099 20948 20817 20945 20997
Adjusted Variance (%) 12.3 10.2 6.6 4.1 3.6 3.2 2.9 2.6
Cumulative adjusted Variance (%) 12.3 22.5 29.1 33.2 36.8 40.0 42.9 45.5
SPCA - HL
Number of nonzero loadings 13259 4086 15362 13547 13946 10445 9890 10958
Adjusted Variance (%) 20.6 13.4 11.5 6.4 6.1 4.9 4.0 4.1
Cumulative adjusted Variance (%) 20.6 34.0 45.5 51.9 58.0 62.9 66.9 71.0
SSPCA - HL
Number of nonzero loadings 1260 681 375 290 47 58 33 3434
Adjusted Variance (%) 22.3 8.7 6.1 6.5 1.3 0.4 0.0 1.6
Cumulative adjusted Variance (%) 22.3 31.0 37.1 43.6 44.9 45.3 45.3 46.9
  1. Number of nonzero loadings and cumulative variance for different methods.