CODEWITHSUNDEEP
rfilesystemssystem
Dolan Antenucci
Dolan Antenucci

Reputation: 15942

Determining current file's location in R to include file from same directory?

I want to be able to source() a file which includes a different file in its same directory, but I don't want to have to set the working directory from the R-prompt before running this file:

> getwd()
[1] "/Users/myser"
> source("/Users/myuser/workspace/myproject/myfile.r")

Inside /Users/myuser/workspace/myproject, there would be myfile.r and my-utils.r. myfile.r calls source('my-utils.r') from within it.

Other programming languages can determine the current file's path. Does R have something similar? Example:

cur_dir <- sys.get_current_file_path()
source(file.path(cur_dir, "my-utils.r"))

Upvotes: 10

Views: 4412

Answers (2)

ReinstateMonica3167040
ReinstateMonica3167040

Reputation: 798

I know it's very late, but for people of the future, I ran into this answer on getting the directory where the script being sourced is.

I think you should be able to do this without installing additional packages:

cur_dir = utils::getSrcDirectory(function(){})[1]
source(file.path(cur_dir, 'my-utils.R'))

Upvotes: 0

Apprentice Queue
Apprentice Queue

Reputation: 2036

source("/Users/myuser/workspace/myproject/my-utils.r", chdir=TRUE)

When chdir option is set to true and the source file parameter is a full path, the directory of file will be used as the working directory while sourcing the file.

NOTE: cur_dir <- sys.get_current_file_path() doesn't make much sense because pathnames are not unique.

Upvotes: 11

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