My DCE involves different groups of individuals. How do I generate a choice model for 1 specific group only?
This is simply a matter of segmenting the data to only include the group you want.
In Apollo you can select ‘filter’ Then apply an expression that filters for your group - e.g. if you have a clean segment called ‘group’ that identifies the group, and say the third level is ‘dog walkers’ and this is your group of interest - the filter would be ($group==3) .
A small but important wrinkle - in your DCE sample - you should have taken care that you sampled with even stratification otherwise your segement data might have missing observation in it. This is more of a problem with uncontrolled small samples.
your best friend here is to use the ‘segment’ assignment in SurveyEngine - this both allows you to control quotas by segment but also ensure even allocation of decks and choice profiles within that segment, minimising problems when it comes to modelling.
Why not have a go then post your progress - I’m sure the forum would gain a lot from this.