first watched chapter
max access time duration from course start

commit
pull code
new features
new algorithms

set(['wiki', 'course_info_server', 'vertical_server', 'static_tab_server', 'outlink_browser', 'dictation_server', 'navigate', 'discussion_server', 'course', 'peergrading_browser', 'video', 'dictation', 'combinedopenended_server', 'course_server', 'course_info_browser', 'combinedopenended_browser', 'discussion', 'outlink_server', 'access', 'sequential', 'sequential_browser', 'vertical_browser', 'problem_server', 'course_info', 'vertical', 'peergrading_server', 'static_tab', 'static_tab_browser', 'problem_browser', 'html_server', 'html_browser', 'discussion_browser', 'outlink', 'chapter', 'about', 'peergrading', 'video_browser', 'about_browser', 'chapter_server', 'about_server', 'video_server', 'combinedopenended', 'INTERCEPT', 'sequential_server', 'chapter_browser', 'course_browser', 'problem', 'dictation_browser', 'html'])

default value of features

event.event_type
3112191 access
649259 discussion
1009309 navigate
1237883 page_close
1261170 problem
796958 video
90507 wiki

unique events
wiki
navigate
access

object.category
 125 about
 547 chapter
  18 combinedopenended
  39 course
  78 course_info
  11 dictation
1738 discussion
 966 html
  85 outlink
  15 peergrading
5135 problem
3551 sequential
  67 static_tab
9823 vertical
5051 video


total number of students in a course - bad feature... results in lower f1 and roc
Start date is available only for chapter, sequential and course page
very limited text available

total enrollments per course - only 40 courses
average lag in viewing videos
average lag in problems
maximum parallel enrollments - don't have course start date
%ages of completed objects