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Yale Astronomy

Interactive Data Language (IDL)

Our group uses IDL for all of our research projects. If you are a interested in learning IDL, you can download it from the ITT Website to use in demo mode for free, or students can purchase a student edition which costs about the price of an average textbook. See below for useful IDl sites, example programs, and other helpful tips.

Useful Sites

Example Programs

Here are two example programs which demonstrate the syntax of IDL:


Helpful Tips

When someone in our group finds an answer to an IDL question, we try to share it here:

Photo by Julien Spronck