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My aim is to develop an MNL model which will help me estimate priors for my final model. Initially, I used real reference levels to generate two models: one in which cost of alternatives are pivoted around $150 and another in which cost of alternatives is pivoted around $200, the values of the rest ...

Thanks for pointing out the differences between Ngene Online and Ngene Desktop.
I am using the following design with real reference levels:
design ? mode choice of shippers with Real data SurveyEngine (FINAL)
;alts(low)=truck, train, etrain
;alts(high)=truck, train, etrain
;rows=36
;block=3
;eff ...

Dear Michiel,
The example given in section 9.1 is related to unlabeled alternatives. My design has labelled alternatives and all attributes are not generic. But still I tried to follow the code given in script 9.1:
design ? mode choice of shippers with HOMOGENOUS DESIGN CODING
;alts=truck, train ...

Dear Michiel,

This was the original code:
design ? mode choice of shippers without reference alternative
;alts(withref)=ref, truck, train, etrain
;alts(withoutref)=truck, train, etrain
;rows=24
;block=2
;eff= withoutref(mnl,d)
;con
;model(withref): ?auxiliary model with reference alternative
U ...

I am designing a labelled choice experiment to estimate WTP for more reliable freight transport along a particular corridor. There are three labelled alternatives:
Normal Road Transport
Normal Intermodal Transport
High speed Intermodal Transport
The different attributes are:
Transport Cost ...

I am designing a labelled choice experiment to estimate WTP for more reliable freight transport along a particular corridor. There are three labelled alternatives:
Normal Road Transport
Normal Intermodal Transport
High speed Intermodal Transport
There are no status quo alternatives. The different ...