Author Archives: admin

Guidelines for Posting to the Gams Mailing List

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The Gams mailing list can be very helpful. There are a lot of people who are willing to use their free time to answer your questions. My advice: subscribe to the mailing list at http://www.listserv.dfn.de/cgi-bin/wa?SUBED1=gams-l&A=1 ( and even if you don’t post to it, you can learn a lot of the questions and answers by others. If you post: don’t be afraid to ask a stupid question. The worst thing that can happen is that you get an answer like I once got. I asked a really stupid answer and got the answer: “Think”!

Tom Rutherford posted some nice guidelines … Read the rest “Guidelines for Posting to the Gams Mailing List”

Outline Mode in Gams-Mode for Emacs

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Let’s get to know the great things you can do with Gams-mode. In the previous post I showed how Gams-mode nicely colors your code, the syntax-highlighting. In this post we will look at the great way Gams-mode shows the results of your model run. This is done in the Gams-Outline mode.
First run your model by hitting C-c C-s (C stands for Ctrl) or use the same command from the menu. Emacs will open a new window and you see how Gams solves your model. When Gams is finished you can hit F10 (or C-c C-v)  to show the listing
… Read the rest “Outline Mode in Gams-Mode for Emacs”

Emacs Goodies

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Often you have to repeat a series of keystrokes. That is probably boring if the number of repetitions is low, but gets really annoying if the number gets higher. A typical example is formatting data or text. Take the following text snippet where we have data coming from a comma separated file:
A;410
B;243
C;134
A;410
B;324
C;134
A;410
B;324
C;134
…
and you would like to have this text in the following format
A        410,
B        243,
Emacs makes this a very easy job: Start the macro recording with C-x (  or F3 (the C stands for the Control
… Read the rest “Emacs Goodies”

Syntax Coloring in Gams-Mode

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I suppose you have installed emacs and gams-mode for emacs (if not see my preceding posts) and now are eager to start working on your model.
Let us start simple and get a model from the Gams-library. If you started emacs you are not in gams-mode (you can check this by looking at the menu bar: there is no gams-entry). If you load a gams model (with the extension “gms”), Emacs automatically turns on gams-mode and the gams entry appears in the menu bar (blue arrow). The first thing you probably notice is the syntax coloring. The coloring you will
… Read the rest “Syntax Coloring in Gams-Mode”