FEma: A fixed effects (FE) meta-analysis (MA) of multiple GWAS with...

Description Usage Arguments Value References

View source: R/LR-GSmeta.R

Description

Under FE MA, we assume the same effect sizes across all studies. They can be efficiently estimated following the Lin-Sullivan approach.

Usage

1
FEma(betas, stders, sigma = NULL)

Arguments

betas

effect size estimates from K studies

stders

standard errors for the effct size estimates

sigma

the correlation matrix of effect size estimates. Default to NULL for independent studies.

Value

betam

estimated mean effect size

Vm

variance of betam

p.value

p-value for testing the mean effect size

References

Lin,D.Y. and Sullivan,P.F. (2009) Meta-Analysis of Genome-wide Association Studies with Overlapping Subjects. Am J Hum Genet 85, 862<e2><80><93>872.

Han,B. and Eskin,E. (2011) Random-Effects Model Aimed at Discovering Associations in Meta-Analysis of Genome-wide Association Studies. The American Journal of Human Genetics 88, 586<e2><80><93>598.

Wu,B. and Zhao,H. (2018) Powerful random effects modeling for meta-analysis of genome-wide association studies.


baolinwu/GSmeta documentation built on May 24, 2019, 7:13 a.m.