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dear all,
I have the same problem with syntax when I want to créate a best-worst design. Actually the main reason I bought both Ngene and choice experiment book by hensher was to create a best-worst design. Actually, How the autor used Ngene or put the codes when they did not work?
Therefore, I ...

Hi, in the results of pilot study, a coefficient was more than 1 (1.48). Hence , could you put 1 instead 1.48 in the bayesian design? Is it correct? I think that 1.47 is too high. Moreover, if i forget to identify that the attributes with only two leves are dummy coded, what are the implications in ...

Dear all
I did today my second pilot and the resuls are totally opposite with the first pilot. Since I believe that there is high hetergeneity inthe sampl, I pulled the data and estimating a MNL or RPL most of coefficient are not significant. Moreover the D error increased rispect to previous ...

Dear Michiel, thanks for your reply. I have the results, but I think that there is somenting strange. Even if the S estimate is quite good, in my efficent design I have a duplicade cards (cards9 and cards 11), as below. I am not sure now what I have to do. Could I drop one of cards? Can I estimate ...

Dear all, I wrote because I tried to use efficient design. In my first pilot, the results were quite bad. Before I used a choice set of 12 cards following this code:
Design
;alts = alt1, alt2
;rows = 12
;orth = sim
;model:
U(alt1) = b1 * PRICE[0,1,2,3] + b2 * FAT [0,1] + b3 * SALT [0,1] + b4 ...

Dear all, I wrote because I tried to use efficient design. In my first pilot, the results was quite bad. Before I used a choice set of 12 cards following this cose:
Design
;alts = alt1, alt2
;rows = 12
;orth = sim
;model:
U(alt1) = b1 * PRICE[0,1,2,3] + b2 * FAT [0,1] + b3 * SALT [0,1] + b4 ...

Dear All,
I wrote , because I tried to use efficient disign.

Dear Michiel Bliemer, thank you for your reply.
Actually, I'm working on a design to carry out a pilot survey. Then, I'm going to use the estimates from the data of the pilot survey as priors to construct an efficient design. So, my questions are:1) If I perform a design using the codes below, can I ...

Dear all
I write in this forum because I have some doubt about the "ood" code.
My design consists of 3 attributes. The first one is the price with 4 levels, the second and the third attributes are dummy codes. Since I am also interested in the interaction beetween the second and the third ...