doiplot: Doi plot for Asymmetry
In metasens: Statistical Methods for Sensitivity Analysis in Meta-Analysis

doiplot

R Documentation

Doi plot for Asymmetry

Description

Implementation of the Doi plot proposed by Furuya-Kanamori et al. (2018) to evaluate bias in meta-analysis.

Usage

doiplot(
  TE,
  seTE,
  xlim,
  ylim,
  xlab = NULL,
  ylab = "|Z-score|",
  lfkindex = TRUE,
  pos.lfkindex = "topleft",
  ...
)

Arguments

`TE`	An object of class `lfkindex` or `meta` or estimated treatment effect in individual studies.
`seTE`	Standard error of estimated treatment effect (mandatory if `TE` not of class `lfkindex` or `meta`).
`xlim`	The x limits (min,max) of the plot.
`ylim`	The y limits (min,max) of the plot.
`xlab`	A label for the x-axis.
`ylab`	A label for the y-axis.
`lfkindex`	A logical indicating whether LFK index should be printed.
`pos.lfkindex`	A character string with position of text with LFK index (see `legend`).
`...`	Additional arguments (passed on to `plot.default`).

Author(s)

Gerta Rücker gerta.ruecker@uniklinik-freiburg.de, Guido Schwarzer guido.schwarzer@uniklinik-freiburg.de

References

Furuya-Kanamori L, Barendregt JJ, Doi SAR (2018): A new improved graphical and quantitative method for detecting bias in meta-analysis. International Journal of Evidence-Based Healthcare, 16, 195–203

Examples

# Example from Furuya-Kanamori et al. (2018)
#
pain <- data.frame(SMD = c(-4.270, -1.710, -0.580, -0.190, 0.000),
                   varSMD = c(0.158,  0.076,  0.018,  0.022, 0.040))

lfk.pain <- lfkindex(SMD, sqrt(varSMD), data = pain)
lfk.pain

doiplot(lfk.pain)

metasens documentation built on March 7, 2023, 7:51 p.m.