Install a course from a course directory
Returns TRUE if e$expr is of the given class
Begin the upcoming question or unit of instruction.
Returns TRUE if as.character(e$val) matches the regular
expression given as the first argument.
An interactive learning environment for R and statistics.
Install a course from a url that points to a zip file
Test the the length of e$val is that given by the first argument
Display a list of special commands.
Exit swirl.
Tests the result of a computation such as mean(newVar) applied
to a specific variable created in a previous question and
saved as e$newVar.
Tell swirl to ignore console input for a while.
Tests if the e$expr creates one new variable (of correct name
if given.) If so, returns TRUE.
Returns TRUE if the e$expr uses the function whose
name is given as the first argument.
Install a course from a GitHub repository
Return to swirl's main menu.
Test that the user has entered an expression identical to that
given as the first argument.
Zip a course directory
Skip the current unit of instruction.
Returns TRUE if a variable of the given name exists
in the global environment and is of the given class.
Uninstall a course
Install a course from a zipped course folder
Test for a correct expression, a correct value, or both.
Install a course from a zipped course directory shared on Dropbox
install_course_google_drive
Install a course from a zipped course directory shared on Google Drive
Install a course from the official course repository