plots:contour_enhanced_funnel_plot_2
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+ | ===== Contour-Enhanced Funnel Plot 2 ===== | ||
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+ | ==== Description ==== | ||
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+ | Here is another example of a contour-enhanced funnel plot (Peters et al., 2008) (see [[plots: | ||
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+ | ==== Plot ==== | ||
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+ | {{plots: | ||
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+ | ==== Code ==== | ||
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+ | <code rsplus> | ||
+ | library(metafor) | ||
+ | |||
+ | ### decrease margins so the full space is used | ||
+ | par(mar=c(5, | ||
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+ | ### calculate log odds ratios and corresponding sampling variances | ||
+ | dat <- escalc(measure=" | ||
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+ | ### create contour enhanced funnel plot | ||
+ | funnel(dat$yi, | ||
+ | | ||
+ | | ||
+ | | ||
+ | </ | ||
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+ | ==== References ==== | ||
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+ | Graves, P. M., Deeks, J. J., Demicheli, V., & Jefferson, T. (2010). Vaccines for preventing cholera: Killed whole cell or other subunit vaccines (injected). //Cochrane Database of Systematic Reviews, 8//, CD000974. | ||
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+ | Peters, J. L., Sutton, A. J., Jones, D. R., Abrams, K. R., & Rushton, L. (2008). Contour-enhanced meta-analysis funnel plots help distinguish publication bias from other causes of asymmetry. //Journal of Clinical Epidemiology, | ||
plots/contour_enhanced_funnel_plot_2.txt · Last modified: 2024/04/16 12:26 by Wolfgang Viechtbauer