Installing R 4.2.0

Procedure

1. Download the R language source package.

   cd /path/to/DECONTAM
   wget https://cran.r-project.org/src/base/R-4/R-4.2.0.tar.gz

2. Decompress the installation package.

   tar xvf R-4.2.0.tar.gz
   cd R-4.2.0
   yum install libXt-devel libX11-devel readline-devel
   ./configure --prefix=/path/to/DECONTAM/R_install
   make
   make install

3. Load the environment variables.

   export PATH=/path/to/DECONTAM/R_install/bin:$PATH
   export LD_LIBRARY_PATH=/path/to/DECONTAM/R_install/lib/R/lib:$LD_LIBRARY_PATH

4. (Optional) Add an R language mirror source if needed.

   vim ~/.Rprofile

5. Add the following content to the file:

   options("repos"= c(CRAN="http://mirrors.tuna.tsinghua.edu.cn/CRAN/"))
   options(BioC_mirror="http://mirrors.tuna.tsinghua.edu.cn/bioconductor/")