crsra_anonymize         Anonymizes ID variables (such as Partner hashed
                        user ids) throughout the data set. The function
                        is based on the function 'digest' from the
                        package 'digest'.
crsra_assessmentskips   Frequencies of skipping an peer-assessed
                        submission
crsra_delete_user       Deletes a specific user from all tables in the
                        data in case Coursera data privacy laws require
                        you to delete a specific (or set of) user(s)
                        from your data.
crsra_gradesummary      The average course grade across different
                        groups
crsra_import            Imports all the .csv files into one list
                        consisting of all the courses and all the
                        tables within each course.
crsra_import_as_course
                        Convert a Coursera Course to Coursera Import
crsra_import_course     Imports all the .csv files into one list
                        consisting of all the tables within the course.
crsra_membershares      The share of learners in each course based on
                        specific characteristics.
crsra_progress          Ordered list of course items and the number and
                        share of learners who have completed the item
crsra_tabledesc         Returns description for a table
crsra_timetofinish      Time that took each learner (in days) to finish
                        a course
crsra_whichtable        Returns a list of tables a variable appears in
example_course_import   Example Import of a Coursera Course
tabdesc                 Table Descriptions
