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meta (version 8.1-0)

General Package for Meta-Analysis

Description

User-friendly general package providing standard methods for meta-analysis and supporting Schwarzer, Carpenter, and Rücker , "Meta-Analysis with R" (2015): - common effect and random effects meta-analysis; - several plots (forest, funnel, Galbraith / radial, L'Abbe, Baujat, bubble); - three-level meta-analysis model; - generalised linear mixed model; - logistic regression with penalised likelihood for rare events; - Hartung-Knapp method for random effects model; - Kenward-Roger method for random effects model; - prediction interval; - statistical tests for funnel plot asymmetry; - trim-and-fill method to evaluate bias in meta-analysis; - meta-regression; - cumulative meta-analysis and leave-one-out meta-analysis; - import data from 'RevMan 5'; - produce forest plot summarising several (subgroup) meta-analyses.

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Install

install.packages('meta')

Monthly Downloads

23,753

Version

8.1-0

License

GPL (>= 2)

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Maintainer

Guido Schwarzer

Last Published

May 2nd, 2025

Functions in meta (8.1-0)

cidprop.meta

Calculate expected proportion of comparable studies with clinically important benefit or harm
drapery

Drapery plot
ci

Calculation of confidence intervals (based on normal approximation or t-distribution)
estimates.meta

Extract results from meta-analysis object
bubble.metareg

Bubble plot to display the result of a meta-regression
caffeine

Caffeine for daytime drowsiness
forest.metabind

Forest plot to display the result of a meta-analysis
forest.metacum

Forest plot to display the result of a cumulative meta-analysis
forest.meta

Forest plot to display the result of a meta-analysis
cisapride

Cisapride in Non-Ulcer Dispepsia
meta-sm

Description of summary measures available in R package meta
meta-transf

Auxiliary functions for (back) transformations
labels.meta

Create study labels for forest plot
funnel.meta

Funnel plot
longarm

Transform data from pairwise comparisons to long arm-based format
forest.metainf

Forest plot to display the result of a leave-one-out meta-analysis
gs

Get default for a meta-analysis setting.
labbe.metabin

L'Abbé plot for meta-analysis with binary outcomes
meta-object

Description of R object of class "meta"
meta-package

meta: Brief overview of methods and general hints
metacr

Meta-analysis of outcome data from Cochrane review
metabias.meta

Test for funnel plot asymmetry
metacont

Meta-analysis of continuous outcome data
metaadd

Add pooled results from external analysis to meta-analysis
metacum.meta

Cumulative meta-analysis
metabin

Meta-analysis of binary outcome data
metabias.rm5

Cochrane review: Test for funnel plot asymmetry
metabind

Combine and summarize meta-analysis objects
metagen

Generic inverse variance meta-analysis
metacor

Meta-analysis of correlations
metainc

Meta-analysis of incidence rates
metarate

Meta-analysis of single incidence rates
metamerge

Merge results of two meta-analyses on the same data set
metainf.meta

Influence analysis in meta-analysis using leave-one-out method
nnt

Calculate the number needed to treat (NNT)
metaprop

Meta-analysis of single proportions
pairwise

Transform meta-analysis data from two arm-based formats into contrast-based format
metamean

Meta-analysis of single means
or2smd

Conversion from log odds ratio to standardised mean difference
metareg.meta

Meta-regression
print.rm5

Cochrane review: summary of meta-analyses
plot.cidprop

Plot density of prediction distribution highlighting areas of clinically important benefit or harm
print.metacum

Print results of a cumulative meta-analysis
radial.meta

Radial plot
print.summary.meta

Print detailed meta-analysis results
print.metainf

Print results of a leave-one-out meta-analysis
print.meta

Print meta-analysis results
read.mtv

Import RevMan 4 data files (.mtv)
read.rm5

Import RevMan 5 analysis data
read.cdir

Import data of Cochrane intervention review
[.longarm

Extract parts of longarm object
smoking

Smoking example
rob

Risk of bias assessment
subset.longarm

Return subset of longarm object
summary.meta

Summary of meta-analysis results
summary.rm5

Cochrane review: detailed summary of meta-analyses
[.pairwise

Extract parts of pairwise object
subset.pairwise

Return subset of pairwise object
smd2or

Conversion from standardised mean difference to log odds ratio
settings.meta

Print and change default meta-analysis settings in R package meta
trimfill.rm5

Cochrane review: trim-and-fill method
update.meta

Update a meta-analysis object
traffic_light

Produce traffic light plot of risk of bias assessment
weights.meta

Calculate absolute and percentage weights for meta-analysis
trimfill.meta

Trim-and-fill method to adjust for bias in meta-analysis
woodyplants

Elevated CO_2 and total biomass of woody plants
Pagliaro1992

Meta-analysis on Prevention of First Bleeding in Cirrhosis
JAMAlabels

Create study labels in JAMA layout (deprecated function)
as.data.frame.meta

Coerce to a data frame
blup.meta

Calculate best linear unbiased predictor for meta object
Fleiss1993bin

Aspirin after Myocardial Infarction
baujat.meta

Baujat plot to explore heterogeneity in meta-analysis
Olkin1995

Thrombolytic Therapy after Acute Myocardial Infarction
Fleiss1993cont

Mental Health Treatment
barplot.rob

Produce weighted bar plot of risk of bias assessment
amlodipine

Amlodipine for Work Capacity