R command for setting working directory to source file location in Rstudio

r automation working-directory
Stat-R picture Stat-R · Dec 2, 2012 · Viewed 122k times · Source

I am working out some tutorials in R. Each R code is contained in a specific folder. There are data files and other files in there. I want to open the .r file and source it such that I do not have to change the working directory in Rstudio as shown below:

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Is there a way to specify my working directory automatically in R.

Answer

Richie Cotton picture Richie Cotton · Mar 7, 2016

To get the location of a script being sourced, you can use utils::getSrcDirectory or utils::getSrcFilename. So changing the working directory to that of the current file can be done with:

setwd(getSrcDirectory()[1])

This does not work in RStudio if you Run the code rather than Sourceing it. For that, you need to use rstudioapi::getActiveDocumentContext.

setwd(dirname(rstudioapi::getActiveDocumentContext()$path))

This second solution requires that you are using RStudio as your IDE, of course.

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