Gantt Chart Add-in
file: Gantt Chart.jmpaddin
Author: Michael Dickey
Copyright © 2013 SAS Institute Inc. All Rights Reserved.

This add-in uses JMP's Graphbuilder platform to provide project managers and other JMP users with a Gantt chart which will clearly organize
 and illustrate a project's work breakdown structure.  This add-in will produce a Gantt chart once a user specifies columns from a data table for the following roles: 
the names of the tasks in the project, the start dates of those tasks (in date format), and either the date that the task is scheduled to end or the length of the task
 (in days, weeks, months, or quarters).  Additional roles which are optional include: percent of task completed (for a shading effect), a grouping column, and an
 ordering column (although by default the chart is ordered by start dates from earliest to latest).


Instructions for formatting:

-Please provide column names with a character format (i.e. do not use "% done").

-Populate the "percent done" column with a number between 0-100, do not format these as actual percentages for best results.

-Notice that new columns in the data table will be created, these will be named and referenced by the add-in with the names "enddate" (if not provided),
"donedate", "tasklength", etc., avoid use of these names with your data table.  Delete these columns if you plan to use the data table with the add-in another time.
(This feature changed in the near future, so that extra columns are not created).

-Notice that the values in columns created will be recalculated by a formula as values in the columns provided are changed, this will make changes in the Gantt chart
 you are viewing.

Updates to this add-in will be available on the JMP File Exchange as more features are introduced.