Creates a temporary folder
A string specifying the path to the folder
temporary_folder() function is a convenience function
used to create a new temporary folder inside the temporary directory
tempdir) for the current R session. The name of the subfolder
is always "jaysire_" followed by a 5-character alphanumeric string.
The purpose of this function is mostly expository: it makes it a little easier to create easy-to-follow tutorials on the package website. It is not expected that users of the jaysire package would have much need for this function