Hi Luck, If your package is installed,
system.file("extdata", "InputFiles", package = "myPackage") will give you the full path of the InputFiles directory. See ?system.file for more details. HTH, Tobias ----- Original Message ----- > From: "Luck Buttered" <luckbutte...@gmail.com> > To: "r-devel@r-project.org" <r-devel@r-project.org> > Sent: Saturday, October 31, 2015 9:14:06 PM > Subject: [Rd] Example input data with example output using relative pathway > in vignette of R package? > I'm putting together an R package. I would like to show example code in the > vignette, where example data files (included in the package) are used to > generate an (example) output file. > > I read about using example data in Hadley Wickham's post ( > http://r-pkgs.had.co.nz/data.html), and believe I should keep my example > data as raw data, as it must be parsed to generate the output. > > So, I created a directory in my package structure > > /Users/userName/myPackage/inst/extdata/ > > with subdirectories InputFiles and OutputFiles. > > And I put the example file (exampleData.csv) inside of the InputFiles > subdirectory (/Users/userName/myPackage/inst/extdata/InputFiles). > > My vignette is located in: > > /Users/userName/myPackage/vignettes/myPackage.Rnw > > It contains the following syntax: > > <<eval=FALSE>>= > fileString = > "/Users/userName/myPackage/inst/extdata/InputFiles/exampleData.csv" > doFunction1(fileString) > doFunction2(fileString) > doFunction3(fileString, output > ="Users/userName/myPackage/inst/extdata/OutputFiles")@ > > I am having two problems with developing this vignette and its example > datasets: > > 1) I am unsure if my use of the extdata file is appropriate. This seemed to > be the best directory name and location to place my example files, > according to the aforementioned Hadley Wickham reference. > > 2) I am unsure how to make the pathways relative, instead of absolute, as I > have them currently. This example code does not run automatically, as you > can see. Instead, I have it under an R chunk of eval=FALSE so that it is > simply listed there for the users to test themselves. After running the > example code, the users can also check that the output file was indeed > created in (/Users/userName/myPackage/inst/extdata/OutputFiles). What is > the best way for me to allow the user to not have to use an absolute path > when following the example? Is it possible to just follow a relative path > from within the package directory myPackage? I cannot create a help manual > (AFAIK) because this example code is not just an example of running one > function; instead, it is an example of running several functions and then > viewing the output. > > If it would make more sense for me to just run the R chunk with eval=TRUE, > I would have the same question: How could I get it to automatically run > with just relative pathways? > > Thank you for any advice! > > [[alternative HTML version deleted]] > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel