Gri: a language for scientific graphics

Gri is an extensible plotting language for producing scientific graphs, such as x-y plots, contour plots, and image plots.

New users: To see if Gri might be useful to you, spend a few minutes reading the introduction, the simple example tutorial, the FAQ and the cookbook. It is also a good idea to check out the real-world examples. Then you should return here to scan the table of contents.

Experienced users:

• To check the syntax of a command, consult the list of Gri commands. You should also check the list of new features occasionally.
• Become familiar with the index.
• If you'd rather not navigate this web-site, you might like to go straight to the FTP site to get the manual, in PostScript format, GNU texinfo format, or HTML format.

Advanced gri users might want to check out the descendent of the Gri language, called Gre.

Table of contents

• Introduction: What Gri is for
• Simple Example: Introductory example
• Fancy Example: More complicated example
• Invoking Gri: Running/viewing/printing Gri
• Programming: How to program in the Gri language
• General Issues: Miscellaneous aspects (read me)
• X-y Plots: Drawing x-y linegraphs/scattergraphs
• Contour Plots: Drawing contour plots
• Images: Drawing black+white or color images
• Examples: Some real-world examples
• Handling Data: Dealing with oddly-configured data
• Commands: COMPLETE list of Gri commands
• Extras: Extra programs provided with Gri
• Evolution: How Gri has changed over time
• Accessing: How to access/install Gri
• Bugs: List of bugs, and how to report more
• Overview of System Tools: Useful tools in Unix and other OS
• Acknowledgments: People who have helped me develop Gri
• License: The Gri license
• Discussion Group: Gri email-based newsgroup
• Index of Commands: Commands in Gri
• Index of Builtins: Builtin variables
• Concept Index: Detailed index