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Hi,

I am working on a design in which attribute levels should be realistic for the respondents. The condition I used before is just that travel times are higher when walking compared to cycling. However, what I would like to do is:

bike.time_bike*2.5 <= walk.time_walk

Is a condition like that ...

Great! Thank you very much, that really helped a lot!

Hi again,

I have tried to implement the changes but already have a follow up question. Here's how I changed the syntax:

design
;alts = walk, bike, bike_sharing, car_pass, pt
;rows = 12
;block = 2
;eff = (mnl,d)

;cond:
if(walk.length = 1, time_walk = [8,12,16,20]),
if(walk.length = 3, time_walk ...

The trip length varies for each respondent, so we will use conditionals! Thanks for the elaborate response

I totally agree about using understandable attribute levels, those were just premiliminary, also thanks for catching that I forgot the ASC!

Hi everyone,

I'm fairly new to Ngene and am trying to design a survey for modelling transport mode choices. The choice task looks something like: "If you were to make a trip that is 3km long which of the following modes of transportation would you choose?"

Different choice situations will have ...