The gradereport gradedist module allows for viewing the distribution of student grades for a course regarding the current grade letter boundaries as well as changing these to shift the distribution. This module depends on HighCharts for visualizing the grade distribution, see README.
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Grade Distribution

This file is part of the gradereport_gradedist plugin for Moodle -

Author: Andreas Krieger, Günther Bernsteiner

Copyright: 2014 Academic Moodle Cooperation

License: GNU GPL v3 or later


The Grade Distribution report 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.


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.


The plugin is available for Moodle 2.7+. This version is for Moodle 3.6.

The module requires the external Highcharts JavaScript library, available free of charge for non-commercial use.


  • Copy the module code directly to the moodleroot/grade/report/gradedist directory.

  • Download version 4.x of the Highcharts library from 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 grade/report/gradedist/js.

  • Log into Moodle as administrator.

  • Open the administration area (http://your-moodle-site/admin) to start the installation automatically.

Admin Settings

An administrator can adjust the default settings instance-wide for the grade distribution in the general settings page. The type of grade display can be specified and one can choose from the following:

  • Letter
  • Letter (percentage)
  • Letter (real)
  • Percentage
  • Percentage (letter)
  • Percentage (real)
  • Real
  • Real (letter)
  • Real (percentage)


You can find a cheat sheet for the plugin on the AMC website and a video tutorial in german only in the AMC YouTube Channel.

Bug Reports / Support

We try our best to deliver bug-free plugins, but we can not test the plugin for every platform, database, PHP and Moodle version. If you find any bug please report it on GitHub. Please provide a detailed bug description, including the plugin and Moodle version and, if applicable, a screenshot.

You may also file a request for enhancement on GitHub. If we consider the request generally useful and if it can be implemented with reasonable effort we might implement it in a future version.

You may also post general questions on the plugin on GitHub, but note that we do not have the resources to provide detailed support.


This plugin is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

The plugin is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License with Moodle. If not, see

Good luck and have fun!