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I often find myself writing R scripts that generate a lot of output. I find it cleaner to put this output into it's own directory(s). What I've written below will check for the existence of a directory and move into it, or create the directory and then move into it. Is there a better way to approach this?
mainDir <- "c:/path/to/main/dir" subDir <- "outputDirectory" if (file.exists(subDir)){ setwd(file.path(mainDir, subDir)) } else { dir.create(file.path(mainDir, subDir)) setwd(file.path(mainDir, subDir)) } 
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You can use os. path. exists('<folder_path>') to check folder exists or not.
You can either use an if statement to check if the directory exists or not. If it does not exits, then create the directory. You can directory use mkdir with -p option to create a directory. It will check if the directory is not available it will.
mkdir WILL give you an error if the directory already exists. mkdir -p WILL NOT give you an error if the directory already exists. Also, the directory will remain untouched i.e. the contents are preserved as they were.
Use showWarnings = FALSE:
dir.create(file.path(mainDir, subDir), showWarnings = FALSE) setwd(file.path(mainDir, subDir)) dir.create() does not crash if the directory already exists, it just prints out a warning. So if you can live with seeing warnings, there is no problem with just doing this:
dir.create(file.path(mainDir, subDir)) setwd(file.path(mainDir, subDir)) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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