Meta-Analysis with R by Guido Schwarzer James R. Carpenter & Gerta Rücker

Author:Guido Schwarzer, James R. Carpenter & Gerta Rücker
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

> c2 <- copas(ms1, gamma0.range=c(-1,2), gamma1.range=c(0,1))

> plot(c2)

The resulting plot is shown in Fig. 5.11. We find that the range of γ 0 and γ 1 in the contour plot is now sufficiently large that the p-value curve crosses the p = 0. 1 line in the bottom right plot, which takes place at a selection probability of about 0.3.

Fig. 5.11Graphical output from Copas selection model for meta-analysis on NSAIDS in acute pain [34] after changing ranges for sensitivity parameters gamma 0 and gamma 1

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