choice-metrics.com

For the below orthogonal design I'm getting an error which says that the MNL efficiency measures are undefined. How do I resolve this?

Design
; alts = optionA* , optionB* , optionC* , optionD*
; rows = 16
; block = 4
; orth = seq
; model:
U( optionA ) = btraveltime[-0.2] * tt[1,2,15,26] +
bfare[-0.5] * fare[1865,1900,860,690] +
bdelay[-0.03] * delay [3,6,44,78] +
bsafety[0.2] * safety[3,5,8,9] +
bsecurity[0.3] * security[3,5,8,9] +
bdirect.dummy[0.1] * direct [0,1] +
bwifi.dummy[0.1] * wifi [0,1] /

U( optionB ) = btraveltime * tt + bfare * fare + bdelay * delay +
bsafety * safety + bsecurity * security +
bdirect * direct + bwifi.dummy * wifi /

U( optionC ) = btraveltime * tt + bfare * fare + bdelay * delay +
bsafety * safety + bsecurity * security +
bdirect * direct + bwifi.dummy * wifi /

U( optionD ) = btraveltime * tt + bfare * fare + bdelay * delay +
bsafety * safety + bsecurity * security +
bdirect * direct + bwifi.dummy * wifi
$

Your priors are not appropriate (too large), see also my response to your other post.