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On R (3.1.2) for Windows (Win7) I did the following and it worked: 1- Navigate to the file "Rprofile.site" in the R-folder in my case: C:\Program Files\R\etc\Rprofile.site where "etc" is indeed the given name of the sub-folder. 2- Open the file Rprofile.site in a text-editor with administrator privileges (I did in Notepad) and insert right at the top of the file in the first line the following command which tells R to set the working directory at start-up to the PATH you are specifying within the brackets (be sure you use double backslashes "\\" for Windows!), in my case: setwd("C:\\Users\\FWA\\Documents\\PROGR&MOOCS\\R_coursera") 3- Save the file which then looks like this: setwd("C:\\Users\\FWA\\Documents\\PROGR&MOOCS\\R_coursera") # Things you might want to change # options(papersize="a4") # options(editor="notepad") # options(pager="internal") # set the default help type # options(help_type="text") options(help_type="html") # set a site library # .Library.site <- file.path(chartr("\\", "/", R.home()), "site-library") # set a CRAN mirror # local({r <- getOption("repos") # r["CRAN"] <- "http://my.local.cran" # options(repos=r)}) # Give a fortune cookie, but only to interactive sessions # (This would need the fortunes package to be installed.) # if (interactive()) # fortunes::fortune()4- Fire up the R-Studio and at the command prompt type the 'get working directory' command like this: getwd() 5- Your R-Studio should now return the working directory path you previously have specified. In my case R returns this: [1] "C:/Users/FWA/Documents/PROGR&MOOCS/R_coursera" 6- You're done. Note: this changes the working directory for your R environment, not only for R-Studio. (责任编辑：) |