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List:       r-help
Subject:    Re: [R] Designing a Fractional Factorial Design in R
From:       Bert Gunter <bgunter.4567 () gmail ! com>
Date:       2020-04-29 21:51:58
Message-ID: CAGxFJbQ4yAckokyaGnGWT=x8Dp8FMOwu8OmDZ=Gthh_7tEqK2A () mail ! gmail ! com
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https://CRAN.R-project.org/view=ExperimentalDesign

For many R experimental design packages. You might wish to bookmark
the CRAN task view page.

Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Wed, Apr 29, 2020 at 2:39 PM Rahul Chakraborty <chakrarahul@gmail.com> wrote:
>
> Dear all,
>
> Presently I am working on designing a questionnaire for my discrete choice
> experiment. I intend to use R for the "fractional factorial design". I have
> the following objective-
>
> The respondent has to choose one out of 4 objects. Each of the 4 objects
> are classified by 5 different attributes. However, the levels are not the
> same under each of the objects. For example, the table below displays first
> three attributes and corresponding values of levels.
>
>                    Object1             Object2                Object3
>            Object4
> Attribute1       100              80, 100, 120        120, 140, 160
> 120, 140, 160
> Attribute2    100,80,120     100,80,60,40          80,60,40
> 75, 50, 25
> Atrribute3       100                   100                     100,75
>            75, 50, 20, 10
>
> In this scenario, as you can see the number and values of levels for each
> attribute may vary across different objects. Given this scenario which
> package should I use to implement a fractional factorial design? Any help
> would be highly appreciated.
>
> Thanking you,
>
> -- Regards,
> Rahul Chakraborty
> Research Fellow
> National Institute of Public Finance and Policy
> New Delhi- 110067
>
>         [[alternative HTML version deleted]]
>
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