Description Usage Arguments Value References Examples
View source: R/eff_nbr_tests.R
Calculates the effective number of tests performed in a GWAS, given the LD structure among the SNPs. SNPs that are highly correlated are not counted twice.
1 | eff_nbr_tests(mat, cor.true = FALSE)
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mat |
matrix, either individual by SNPs (n x p) matrix, or correlation matrix between SNPs |
cor.true |
indicates if option mat is a correlation matrix or not |
zhc.correction
number of effective tests
Implemented from https://www.ncbi.nlm.nih.gov/pubmed/18271029
1 2 3 | dat.sim <- data.frame(g = rnorm(100)) %>% dplyr::mutate(g2 = g * 2)
eff_nbr_tests(diag(10), cor.true = TRUE) ## 10, because all are independent
eff_nbr_tests(dat.sim, cor.true = FALSE)
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