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A4.3 Running OxGauss programs from GiveWin 101

Which produces the output:

Ox version 3.00 (Windows) (C) J.A. Doornik, 1994-2001

calling gaussfunc

result from gaussfunc

30.000000 10.000000

10.000000 30.000000

If there are problems at this stage, we suggest to start by reading the ﬁrst chapter of

the ‘Introduction to Ox’ (Doornik and Ooms, 2001).

A4.3 Running OxGauss programs from GiveWin

Using Ox Professional, the OxGauss program can be loaded into GiveWin. The syntax

highlighting makes understanding the program easier:

Click on Run (the running person) to execute the program. This runs the program using

the OxGauss application, with the output in a window entitled OxGauss Session.

GiveWin will treat the ﬁle as an OxGauss ﬁle if it has the .src, .g or .oxgauss

extension. If not, the ﬁle can still be run by launching OxGauss from the GiveWin

workspace window.

A4.4 Calling OxGauss from Ox

The main objective of creating OxGauss was to allow Gauss code to be called from Ox.

This helps in the transition to Ox, and increases the amount of code that is available to

users of Ox.

The main point to note is that the OxGauss code lives inside the gauss namespace.

In this way, the Ox and OxGauss code can never conﬂict.

Returning to the earlier example, the ﬁrst requirement is to make an Ox header ﬁle

for gaussfunc.src. This must declare the external variables and procedures explicitly

in the gauss namespace:

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Matrix Elements VB-800 Manual do Utilizador Página 109