Learn R Programming

NMA (version 3.1-1)

Network Meta-Analysis Based on Multivariate Meta-Analysis and Meta-Regression Models

Description

Network meta-analysis tools based on contrast-based approach using the multivariate meta-analysis and meta-regression models (Noma et al. (2025) ). Comprehensive analysis tools for network meta-analysis and meta-regression (e.g., synthesis analysis, ranking analysis, and creating league table) are available through simple commands. For inconsistency assessment, the local and global inconsistency tests based on the Higgins' design-by-treatment interaction model are available. In addition, the side-splitting methods and Jackson's random inconsistency model can be applied. Standard graphical tools for network meta-analysis, including network plots, ranked forest plots, and transitivity analyses, are also provided. For the synthesis analyses, the Noma-Hamura's improved REML (restricted maximum likelihood)-based methods (Noma et al. (2023) ) are adopted as the default methods.

Copy Link

Version

Install

install.packages('NMA')

Monthly Downloads

552

Version

3.1-1

License

GPL-3

Issues

Pull Requests

Stars

Forks

Maintainer

Hisashi Noma

Last Published

January 28th, 2026

Functions in NMA (3.1-1)

exdataP

Example data of arm-specific survival probability estimates for a network meta-analysis
antidiabetic

Phung et al. (2010)'s network meta-analysis data
nmarank

Calculating ranking statistics of network meta-analysis
nmaQ

Multivariate Q-statistic and its factorization
diabetes

Elliott and Mayer (2007)'s network meta-analysis data
nmaweight

Evaluating study weights and contribution matrix
obj.forest

Numerical objects of ranked forest plot for the synthesis results of network meta-analysis
nmareg

Network meta-regression based on contrast-based approach
setup

Transforming arm-level data to contrast-based summary statistics and making objects for network meta-analysis
sidesplit

Sidesplitting for quantifying direct and indirect evidence for all possible treatment pairs and the inconsistency test
smoking

Smoking cessation data
trans.armdata

Transforming contrast-based summary statistics to arm-based data
nma

Network meta-analysis based on contrast-based approach using the multivariate meta-analysis model
netplot

Generating a networkplot
rdc

Rounding a numerical value
random.icm

Jackson's random inconsistency model
trans.armdataP

Transforming arm-specific incidence proportion or survival probability data to arm-level data
transitivity

Checking transitivity
nmaforest

Generating a ranked forest plot for the synthesis results of network meta-analysis
woods1

Network meta-analysis dataset of COPD: Hazard ratio statistics
nmaleague

Generating a league table
woods2

Network meta-analysis dataset of COPD: Dichotomized data
nmafunnel

Comparison-adjusted funnel plot
SumPMA

Pairwise meta-analyses for all treatment pairs with direct comparisons on the network
global.ict

Higgins' global inconsistency test
local.ict

Local inconsistency tests for all closed loops on the network
exdataMD

Example data of summary statistics from Phung et al. (2010)'s network meta-analysis data
NMA-package

The 'NMA' package.
heartfailure

Sciarretta et al. (2011)'s network meta-analysis data
exdataRR

Example data of summary statistics from Sciarretta et al. (2011)'s network meta-analysis data