Best-Worst Design Syntax Problem

[dlortega]

Hi all,

I am trying to duplicate a Best-Worst design found on the new Applied Choice Analysis Book by Hensher et al (2015) using the Ngene syntax they provide and I am running into some problems. In particular the software is not recognizing the ";prop= bwl(bw)" line of the code which I duplicate below. Any insight into what the problem is would be most appreciated.

Thanks, David

Design
;eff=(mnl,d)
;alts=A,B,C,D
;rows=12
;prop= bwl(bw)
;con
;model:
U(A)= Airline.d[0|0|0|0|0|0|0] *Airline[1,2,3,4,5,6,7,8]/
U(B)= Airline.d *Airline[1,2,3,4,5,6,7,8]/
U(C)= Airline.d*Airline[1,2,3,4,5,6,7,8]/
U(D)= Airline.d *Airline[1,2,3,4,5,6,7,8]$

[johnr]

Hi David

There are several new syntax in the Primer that are currently being tested in a beta version of Ngene which we hope to release in the future. The stuff on BW is one of them unfortunately.

John

[Tiziana]

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 would like to get some feedback and codes to figure out this problem. Unfortunately I do not have enough money to buy other software and follow with my Project
thanks in advance

Tiziana

[Michiel Bliemer]

Dear Tiziana,

I have provided some answers in a separate post on the Ngene forum, please have a look.

Best wishes,
Michiel