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Install R packages from requirements.txt file

Install R Packages from requirements.txt File

Managing R packages and their versions is crucial for reproducibility and maintaining a consistent development environment. One efficient way to achieve this is by using a requirements.txt file to specify the packages and their desired versions.

Prerequisites:
  • R and RStudio installed on your system.
  • Basic familiarity with the R command line.
Creating a requirements.txt File:
  1. Open a text editor (e.g., Notepad or TextEdit).
  2. Start a new file and name it requirements.txt.
  3. In the file, list the R packages you want to install, along with their desired versions.
  4. Use a space to separate the package name and version. For example:
  5. data.table 1.11.4
    DBI 1.0.0
    curl 3.2
    
  6. Save the file in a convenient location on your computer.
Installing Packages from the requirements.txt File:
  1. Open a terminal or command prompt.
  2. Navigate to the directory where the requirements.txt file is located.
  3. Run the following command to install the packages specified in the file:
  4. #!/usr/bin/bash
    while IFS=" " read -r package version;
    do
    Rscript -e "devtools::install_version('"$package"', version='"$version"')";
    done < "requirements.txt"
    
  5. This script will loop through each line in the requirements.txt file, installing each package and its specified version using the devtools::install_version() function.
Alternative Methods:
  • packrat: A package management tool that allows you to create and manage isolated R environments with specific package versions. See https://rstudio.github.io/packrat/ for more information.
  • renv: Similar to packrat, renv provides a way to manage R package dependencies and create reproducible R environments. Refer to https://rstudio.github.io/renv/ for details.
By utilizing a requirements.txt file and the provided installation script, you can efficiently install and manage R packages, ensuring consistency and reproducibility in your R projects.

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