Generate a list of packages installed and their version number.
listVersions(file="", ...)a character string naming a file or a connection open for writing. '""' indicates output to the console.
arguments to write.csv.
This function is useful in reporting problems or bugs, to ensure there is a clear match of R package versions between the system exhibiting the issue and the test system replicating the issue.
By default the information is written to the console in a comma separated form, that is ideally designed to be written to a CSV file for emailing.