choice-metrics.com

Thank you very much for your reply, John!

Hi,

I have created an efficient design consisting of two blocks of 10 choice situations. I distributed two questionnaires and received 13 responses for the first block and 10 for the second block. My question is: How can I account for the difference in sample size when estimating the discrete ...

Hi,

I have written the following code:


? Efficient design
Design
;alts = location1, location2, route1, route2, none
;rows = 10
;eff = (mnl, d)
;alg = mfederov(stop=noimprov(30 mins))
;reject:
location1.x1 >= location2.x1 and location1.x2 >= location2.x2 and location1.x3 >= location2.x3 and ...

Thank you very much for your help Michiel!

I have one last question.

? Efficient design
Design
;alts = location1, location2, route1*, route2*, none
;rows = 20
;eff = (mnl, d)
;block = 2
;alg = mfederov
;reject:
location1.x1 >= location2.x1 and location1.x2 >= location2.x2 and location1.x3 ...

? Efficient design
Design
;alts = location1, location2, route1*, route2*, none
;rows = 20
;eff = (mnl, d)
;block = 2
;alg = mfederov
;reject:
location1.x1 >= location2.x1 and location1.x2 >= location2.x2 and location1.x3 >= location2.x3 and location1.x4 >= location2.x4 and location1.x5 ...

Design
;alts = alt1, alt2
;rows = 20
;orth = ood
;block = 2
;con
;model:
U(alt1) = b1*loc1[0,1] + b2*loc2[0,1] + b3*loc3[0,1] + b4*loc4[0,1] + b5*loc5[0,1] + b6*r1[0,1] + b7*r2[0,1] + b8*r3[0,1] + b9*r4[0,1] /
U(alt2) = b1*loc1[0,1] + b2*loc2[0,1] + b3*loc3[0,1] + b4*loc4[0,1] + b5*loc5[0,1] + b6 ...

Hi Michiel,

Thank you very much for your quick reply.

I have some more questions, which I hope you can answer.
1. In the first choice situation resulting from the orthogonal design, location1 and location2, and route1 and route2 are identical. Is there any way to avoid this?

Choice situation ...

Hi,

I am creating an orthogonal fractional factorial design with five alternatives, using the following code:

?
Simultaneous orthogonal fractional factorial design
Design
;alts = location1, location2, route1, route2, none
;rows = 20
;orth = sim
;block = 2
;con
;model:
U(location1) = a_location ...