How to install:

1 - Install R (https://cran.r-project.org/)

2 - Install RTools (only for Windows users) (https://cran.r-project.org/bin/windows/Rtools/)

3 - Install RStudio (https://posit.co/download/rstudio-desktop/)

Note: You need to install R and RTools with same number version. Example: if you install R 4.3.1, you need to install RTools 4.3.

4 - Open RStudio and run the following commands:

a) install.packages("Rcmdr")

b) install.packages("netmeta")

c) install.packages("BiocManager")

d) BiocManager::install()

e) BiocManager::install("Rgraphviz")

f) install.packages("devtools")

g) library(devtools)

h) install_github("mgoulartinc/RcmdrPlugin.netmeta")

Note 1: During a-h commands, R system may will warn you about update some installed packages. Update all packages.

Note 2: If you're using Linux, maybe you need to install some system packages. Please see the Console output in RStudio when you face a error message to check if it was caused by a non-installed packages.

For open R Commander, just run:

require("Rcmdr")