This following code works, except that the first random is always the same (Analysis) for some reason.
Anyone knows why ?
\enableregime[il1]\starttext\startluacode	userdata = userdata or {}	math.randomseed( os.time() )	function userdata.random(...)		context(arg[math.random(1, #arg)])	end\stopluacode\def\CHOOSERANDOM#1{\ctxlua{userdata.random(#1)}}\dorecurse{10}{\CHOOSERANDOM{"Maths", "Physics", "Algebra", "Analysis", "Chemistry", "Geometry", "Wave equation", "Schrödinger equation"}\par}\stoptext


Mathieu



> From: otared@gmail.com
> Date: Wed, 8 Jun 2011 18:52:36 +0200
> To: ntg-context@ntg.nl
> Subject: [NTG-context] Random selection of a word in a set with lua and mkiv
> 
> Hi all,
> 
> Assuming that we have a set of words or expressions, say
> 	{Maths, Physics, Algebra, Analysis, Chemistry, Geometry, Wave equation, Schrödinger equation}
> is it possible to write a lua function, named for instance
> 	randomselectword
> which returns one of the words or expressions selected at random in the above set?
> Indeed this is intended to be used in a TeX file processed with mkiv.
> 
> Thanks in advance for any idea and help.
> 
> Best regards: OK
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