Moodle plugins directory: Grade distribution | Moodle.org
Grade distribution
The report grade distribution (/grade/report/gradedist) visualizes the grades of students in a course. Changes to letter grades (i.e. the boundary of a grade) can be analysed visually, saved and therefore overwritten if necessary.
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Example
Usually letter grades of a course should be communicated to the students at the beginning of a term. Occasionally it occurs that changes to letter grades are necessary. The grade distribution visualizes the grades of students. Changes to letter grades (i.e. the boundary of a grade) can be analysed visually, saved and therefore overwritten if necessary. By means of an alternating graphic chart changes can be seen immediately.
Installation
Copy the module code directly to the moodleroot/grade/report/gradedist directory. Open the administration area (http://your-moodle-site/admin) to start the installation automatically.
Version < 3.7
Versions < 3.7 require the external Highcharts JavaScript library, available free of charge for non-commercial use.
Download version 4.x of the Highcharts library from http://www.highcharts.com/download. Copy both, the core module highcharts.src.js from the js subdirectory and the exporting.src.js module from the js/modules subdirectory into the directory moodleroot/grade/report/gradedist/js.
Screenshots
What symptoms do you see?
https://code.highcharts.com/3.0.9/highcharts.js
https://code.highcharts.com/4.1.5/modules/exporting.js
because just now I discovered a tiny bug while testing ;)
btw, an adoption of gradedist using charts.js instead of highcharts.is underway, we'll hopefully see it in the next months.