- 1 year ago
R - how to load a package (plugin) with Rscript during execution from a a command line?
To load a package (plugin) using Rscript
during execution from the command line, you can use the library()
function or the require()
function in your R script. Both functions are used to load R packages into the current R session. Here's how you can do it:
Create an R script:
Open a text editor and create an R script with the necessary code to load the package. For example, let's say your R script is named "my_script.R", and you want to load the "dplyr" package:R# my_script.R
library(dplyr)
# or use: require(dplyr)
# Rest of your R script code goes here
Run the script with
Rscript
:
Open a command prompt or terminal, navigate to the directory where your "my_script.R" file is located, and use theRscript
command to execute the script:bashRscript my_script.R
When you run the
Rscript
command, it will start an R session and execute the code in "my_script.R," including thelibrary(dplyr)
line to load the "dplyr" package.
Remember to install the package before running the script. If you haven't installed the "dplyr" package yet, you can do it from the R console using:
Rinstall.packages("dplyr")
After running install.packages("dplyr")
, you can use the library(dplyr)
or require(dplyr)
function in your R script without any issues. The package will be loaded into the R session if it's installed on your system.
Using library()
or require()
in your R script ensures that the specified package is loaded into the R session before the rest of your code executes. This allows you to use the functions and features provided by the package in your script.