This article describes the R package copas which is an add-on package to the R package meta. The R package copas can be used to fit the Copas selection model to adjust for bias in meta-analysis. A clinical example is used to illustrate fitting and interpreting the Copas selection model.
Text and figures are licensed under Creative Commons Attribution CC BY 4.0. The figures that have been reused from other sources don't fall under this license and can be recognized by a note in their caption: "Figure from ...".
For attribution, please cite this work as
Carpenter, et al., "The R Journal: copas: An R package for Fitting the Copas Selection Model", The R Journal, 2009
BibTeX citation
@article{RJ-2009-012,
author = {Carpenter, J. and Rücker, G. and Schwarzer, G.},
title = {The R Journal: copas: An R package for Fitting the Copas Selection Model},
journal = {The R Journal},
year = {2009},
note = {https://doi.org/10.32614/RJ-2009-012},
doi = {10.32614/RJ-2009-012},
volume = {1},
issue = {2},
issn = {2073-4859},
pages = {31-36}
}