Install a course from the official course repository
Begin the upcoming question or unit of instruction.
Install a course from a url that points to a zip file
Test that the user has entered one of several possible expressions.
Test that the user's expression matches a regular expression.
Delete a user's progress
Test that a new variable has been created.
Test the result of a computation applied to a specific (user-named)
variable created in a previous question.
Test for a correct expression, a correct value, or both.
Submit the active R script in response to a question.
Uninstall all courses
Send diagnostic email to swirl admin
Test that the expression itself is of a specific class.
Test that a particular function has been used.
Tell swirl to ignore console input for a while.
Recursively expand match calls in an expression from the bottom up.
Test that the user has entered a particular expression.
Install a course from a course directory
Start over on the current script question.
Return to swirl's main menu.
Install a course from a GitHub repository
Recursively expand both the correct expression and the user's expression and
test for a match. CAUTION: May raise errors, as in rmatch_calls.
An interactive learning environment for R and statistics.
Uninstall a course
Install a course from a zipped course directory shared on Dropbox
Display a list of special commands.
Answer Tests
Install a course from a zipped course folder
install_course_google_drive
Install a course from a zipped course directory shared on Google Drive
Skip the current unit of instruction.
Test that the value of the expression is of a specific class.
Installing Courses
Exit swirl.
Zip a course directory
Test that the value of the expression has a particular length.