| Re: RFC 1: Common functions for beginners [message #35205 is a reply to message #35080] |
Thu, 15 May 2003 10:37   |
Matt Feinstein
Messages: 33
Registered: July 2002
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Member |
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On Wed, 14 May 2003 15:39:23 -0700, Ed Wright <ed.wright@jpl.nasa.gov>
wrote:
>
> To: IDL guri
> From: Ed Wright
>
> I have a request for comments (just like the IETF).
>
> I learned the basics of IDL use and programming over a long time interval
> while writing the magnum opus of dlms. Rather than have new users repeat my
> learning process, I'd like your suggestions for the twenty or so most common
> IDL functions a new user should understand.
>
> I mean most basic-most used. Open file, read numbers, plot numbers, write
> text, close file.
>
> As always,
> Ed Wright
Some things I learned the hard way:
0. The 'where am I' and 'what am I doing here' functions CD, ? , PRINT
1. Always use the /GET_LUN flag
2. How to write programs so they don't have to be explicitly compiled
3. How to use WINDOW, WSET, and the various interrelated coordinate
systems
4. The sorting and searching functions-- WHERE, SORT, UNIQ
Matt Feinstein
--
The Law of Polarity: The probability of wiring a battery with
the correct polarity is (1/2)^N, where N is the number of times
you try to connect it.
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