[R] Designing a Fractional Factorial Design in R

[Bert Gunter]

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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 using 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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