choice-metrics.com

Hello,

1. I know what uninformative non-zero priors I want to use for my individual attribute levels, but I'm not sure what they would be for the interaction terms I have. What priors should I use for my interaction terms?

2. Should I use arbitrary integers (1,2,3) for my attribute levels or use ...

Michiel,

As a refresher, I'm doing WTP for attributes of farmed salmon.

Here is part of my code. I've turned BYP into a binary variable, recycled or not, with the restriction that Open net pen byproducts can never be recycled.:

Design
;alts = alt1*, alt2*, NONE
;rows = 80
;block = 16
;eff = (mnl ...

Thank you, Michiel, does nGene check if the choice matrix is full rank?

Also, I want to organize the choice sets into blocks of 4. Can I do this even though I'm not doing an orthogonal design?

Isaac

Michiel,

Thank you for your reply. I have reworked the code to the following according to your notes. nGene could only produce one design with an undefined D-error. Do you know why this is happening? Do you have any further suggestions?

Design
;alts = alt1*, alt2*, NONE
;rows = 512
;block = 128 ...

Hi all, thank you for all who have posted and replied. I've been able to incorporate a lot from studying your contributions.
I am running a WTP experiment for farmed salmon products with the following attributes:

Production Method (RAS)
0 - farmed with Ocean Net-Pen
1 - farmed with Recirculating ...