copas : An R package for Fitting the Copas Selection Model

@inproceedings{Carpenter2010copasA,
  title={copas : An R package for Fitting the Copas Selection Model},
  author={Jessica L Carpenter and Gerta R{\"u}cker and Guido Schwarzer},
  year={2010}
}
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. 

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