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Documentation for package ‘swirl’ version 2.4.5

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AnswerTests Answer Tests
any_of_exprs Test that the user has entered one of several possible expressions.
bye Exit swirl.
calculates_same_value Test that the user's expression evaluates to a certain value.
delete_progress Delete a user's progress
email_admin Send diagnostic email to swirl admin
expr_creates_var Test that a new variable has been created.
expr_identical_to Test that the user has entered a particular expression.
expr_is_a Test that the expression itself is of a specific 'class'.
expr_uses_func Test that a particular function has been used.
func_of_newvar_equals Test the result of a computation applied to a specific (user-named) variable created in a previous question.
info Display a list of special commands.
InstallCourses Installing Courses
install_course Install a course from The swirl Course Network or install a course from a local .swc file.
install_course_directory Install a course from a course directory
install_course_dropbox Install a course from a zipped course directory shared on Dropbox
install_course_github Install a course from a GitHub repository
install_course_google_drive Install a course from a zipped course directory shared on Google Drive
install_course_url Install a course from a url that points to a zip file
install_course_zip Install a course from a zipped course folder
install_from_swirl Install a course from the official course repository
is_robust_match Recursively expand both the correct expression and the user's expression and test for a match. CAUTION: May raise errors, as in rmatch_calls.
main Return to swirl's main menu.
nxt Begin the upcoming question or unit of instruction.
omnitest Test for a correct expression, a correct value, or both.
play Tell swirl to ignore console input for a while.
reset Start over on the current script question.
restart Restart the current swirl lesson.
rmatch_calls Recursively expand match calls in an expression from the bottom up.
select_language Select a language
skip Skip the current unit of instruction.
submit Submit the active R script in response to a question.
swirl An interactive learning environment for R and statistics.
swirl_options Get swirl options
uninstall_all_courses Uninstall all courses
uninstall_course Uninstall a course
val_has_length Test that the value of the expression has a particular 'length'.
val_matches Test that the user's expression matches a regular expression.
var_is_a Test that the value of the expression is of a specific class.
zip_course Zip a course directory