PublicationBias is an R package that provides bias correction and sensitivity analysis for publication bias in meta-analyses (per Mathur & VanderWeele, 2020).
You can install PublicationBias from CRAN with:
You can install the development version of PublicationBias from GitHub with:
# install.packages("devtools") devtools::install_github("mathurlabstanford/PublicationBias")
Start by generating some example data from the
library(PublicationBias) dat <- metafor::escalc(measure = "RR", ai = tpos, bi = tneg, ci = cpos, di = cneg, data = dat.bcg)
Calculate the meta-analytic effect size estimate, correcting for an assumed selection ratio of 5 (i.e., affirmative results are 5x more likely to be published than nonaffirmative ones).
pubbias_meta(yi = dat$yi, vi = dat$vi, selection_ratio = 5, model_type = "fixed", favor_positive = FALSE)
Calculate how high the selection ratio would need to be to attenuate the effect size estimate to the null.
pubbias_svalue(yi = dat$yi, vi = dat$vi, q = 0, model_type = "fixed", favor_positive = FALSE)