[Limdep Nlogit List] Experimental Design Software for Conjoint

Nanni Concu g.concu at uq.edu.au
Thu Oct 26 09:23:39 EST 2006


You may find this web DOE engine useful.
I sometimes do.
http://www.webdoe.cc/

Nanni Concu

----- Original Message ----- 
From: "infocorp" <infocorp at ozemail.com.au>
To: "Limdep and Nlogit Mailing List" <limdep at limdep.itls.usyd.edu.au>
Sent: Thursday, October 26, 2006 12:22 AM
Subject: [Limdep Nlogit List] Experimental Design Software for Conjoint


> Dear Limdep Users,
>
> I am aware of the SAS macros which require SAS Base, SAS QC, SAS STAT and 
> SAS IML which attact a significant annual rental fee.
>
> I was hoping that there might be a more affordable solution.
>
> Ron
>
> Thomas C. Eagle wrote:
>
>>If you have SAS, Warren Kuhfeld of SAS has a series of design macros 
>>especially
>>designed to build experimental designs: See
>>
>>http://support.sas.com/techsup/tnote/tnote_stat.html#market
>>
>>Tom Eagle
>>
>>-----Original Message-----
>>From: limdep-bounces at limdep.itls.usyd.edu.au
>>[mailto:limdep-bounces at limdep.itls.usyd.edu.au] On Behalf Of infocorp
>>Sent: Wednesday, October 25, 2006 6:47 AM
>>To: limdep at limdep.itls.usyd.edu.au
>>Subject: [Limdep Nlogit List] Experimental Design Software for Conjoint
>>
>>Dear Limdep Users,
>>
>>Is anyone able to recommend affordable experimental design generation
>>software which directly generates conjoint designs when attributes have
>>varying numbers of levels.
>>
>>An hypothetical example of a conjoint task is:
>>
>>1 x 2 level attribute
>>1 x 3 level attribute
>>1 x 4 level attribute
>>1 x 5 level attribute
>>1 x 6 level attribute
>>1 x 7 level attribute
>>
>>SAS QC suggests generating designs with PROC FACTEX using powers of
>>prime numbers and then collapsing levels.
>>
>>The 2 level attribute would be generated directly; the 3 level attribute
>>would be generated by interacting two 2 level attributes to give 4
>>levels, 2 of which would be collapsed; and so on until the 7 level
>>attribute would be generated by interacting three 2 level attributes to
>>give 8 levels, 2 of which would be collapsed.
>>
>>Is there software available which will produce a design directly from
>>the specification above?
>>
>>Ron
>>
>>
>>
>>
>>
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>>
>>
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>>
>>
>
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