Table 4.
Comparison of our method with other feature selection methods.
| Method | Nsp | Sty | ||
|---|---|---|---|---|
| (Sty1 | Sty2) | |||
| Present | 68 | 81 | 50 | |
| Pearson | 49 | 14 | ||
| Spearman | 39 | 18 | ||
| PLS | 7 | 13 | ||
| Stepclass | -- | -- | ||
| lasso | -- | -- | ||
The number of SNPs selected in common between the top-ranked 300 SNPs in genotype and DNA methylationusing various methods. Present, this study; Pearson, Pearson correlation coefficients based method; Spearman, Spearman correlation coefficients based method; PLS, partial least squares based method; Stepclass, stepclass (R function that executes iterative feature selection) based method; and lasso: Lasso based method. Nsp and Sty are the microarray data sets used in the study. Sty1 and Sty2 correspond to the PC4 for genotype (Figures 4d and 6b)/PC3 for DNA methylation (Figures 5c and 6c) and the PC3 for genotype (Figures 4c and 6a)/PC4 for DNA methylation (Figures 5d and 6d) combinations of PCs.