XMETA is an R package that offers several functions for performing meta-analysis and visualizing outcomes. Through video tutorials, sample codes, and more, this website provides a comprehensive exploration of the features found in XMETA and how they may apply to your work.

There are existing R and STATA packages that perform several methods of meta-analysis, which may be supplemented by additional functions available in the XMETA R package.

Existing R package 'meta'

  • Fixed effect and random effect meta- analysis (functions include metabin, metacont, metacor, and others)
  • Plots (forest, funnel, radial, etc.)
  • Statistical tests to evaluate bias (metabias, trimfill)
  • Meta-regression (metareg)

Existing STATA collection of commands

  • Meta-analysis (metan, metaan, metacum)
  • Plots (metafunnel, confunnel)
  • Statistical tests to evaluate bias (metabias, metatrim)
  • Meta-regression (metareg)

What's new in XMETA?

The XMETA package is a comprehensive toolbox for meta-analysis that includes functions for:

  • Making inference for univariate and multivariate meta-analysis
  • Detecting and quantifying the evidence of small study effects (publication bias, heterogeneity)
  • Visualizing univariate and multivariate outcomes in meta-analysis