hg.thresh
In statistical analysis, BOG uses local-fdr as a score for strength of evidence for differences between groups. The smaller absolute value of local fdr, the stronger is the evidence for differences in gene expression. fdr.cutoff is a threshhold used in hypergeometric test. By default, it is set 0.05.
gsea
By default, gsea is set FALSE so that unless user specify it to be TRUE, BOG does not perform GSEA test.