Ngene crashes when reducing number of sets

This forum is for posts that specifically focus on Ngene.

Moderators: Andrew Collins, Michiel Bliemer, johnr

Ngene crashes when reducing number of sets

Postby ementzakis » Wed May 22, 2019 7:49 pm

Hi,

Ngene crashes when the number of alternatives is increased and correspondingly the number of sets reduced even though there are still sufficient degrees of freedom. A similar question was raised in Nov 2018 but there is no update on the forum as to a solution or workaround. Please see example below.

Any help would be much appreciated.

Thank you in advance.


Code: Select all
Design
;alts = A,B
;rows = 16
;eff=(mnl,d)
;model:
U(A) = b1.dummy[0|0|0]*P[1, 2, 3, 4] + b2.dummy[0|0]*C[1, 2, 3] +
i1[0]*P.dummy[1]*C.dummy[1] +
i2[0]*P.dummy[1]*C.dummy[2] +
i3[0]*P.dummy[2]*C.dummy[1] +
i4[0]*P.dummy[2]*C.dummy[2] +
i5[0]*P.dummy[3]*C.dummy[1] +
i6[0]*P.dummy[3]*C.dummy[2] /
U(B) = b1.dummy[0|0|0]*P[1, 2, 3, 4] + b2.dummy[0|0]*C[1, 2, 3] +
i1[0]*P.dummy[1]*C.dummy[1] +
i2[0]*P.dummy[1]*C.dummy[2] +
i3[0]*P.dummy[2]*C.dummy[1] +
i4[0]*P.dummy[2]*C.dummy[2] +
i5[0]*P.dummy[3]*C.dummy[1] +
i6[0]*P.dummy[3]*C.dummy[2] $


Design
;alts = A,B,C
;rows = 8
;eff=(mnl,d)
;model:
U(A) = b1.dummy[0|0|0]*P[1, 2, 3, 4] + b2.dummy[0|0]*C[1, 2, 3] +
i1[0]*P.dummy[1]*C.dummy[1] +
i2[0]*P.dummy[1]*C.dummy[2] +
i3[0]*P.dummy[2]*C.dummy[1] +
i4[0]*P.dummy[2]*C.dummy[2] +
i5[0]*P.dummy[3]*C.dummy[1] +
i6[0]*P.dummy[3]*C.dummy[2] /
U(B) = b1.dummy[0|0|0]*P[1, 2, 3, 4] + b2.dummy[0|0]*C[1, 2, 3] +
i1[0]*P.dummy[1]*C.dummy[1] +
i2[0]*P.dummy[1]*C.dummy[2] +
i3[0]*P.dummy[2]*C.dummy[1] +
i4[0]*P.dummy[2]*C.dummy[2] +
i5[0]*P.dummy[3]*C.dummy[1] +
i6[0]*P.dummy[3]*C.dummy[2] /
U(C) = b1.dummy[0|0|0]*P[1, 2, 3, 4] + b2.dummy[0|0]*C[1, 2, 3] +
i1[0]*P.dummy[1]*C.dummy[1] +
i2[0]*P.dummy[1]*C.dummy[2] +
i3[0]*P.dummy[2]*C.dummy[1] +
i4[0]*P.dummy[2]*C.dummy[2] +
i5[0]*P.dummy[3]*C.dummy[1] +
i6[0]*P.dummy[3]*C.dummy[2] $
ementzakis
 
Posts: 4
Joined: Fri Feb 03, 2012 9:37 pm

Re: Ngene crashes when reducing number of sets

Postby Michiel Bliemer » Thu May 23, 2019 10:53 am

Both syntax run fine for me. Can you please confirm that you have the latest version of Ngene installed? If you have, could you please share the syntax with which Ngene crashes?

Michiel
Michiel Bliemer
 
Posts: 1705
Joined: Tue Mar 31, 2009 4:13 pm

Re: Ngene crashes when reducing number of sets

Postby ementzakis » Thu May 23, 2019 7:21 pm

Hi Michiel

Rookie mistake. Indeed it runs fine on the updated version, many thanks.

Manos
ementzakis
 
Posts: 4
Joined: Fri Feb 03, 2012 9:37 pm


Return to Choice experiments - Ngene

Who is online

Users browsing this forum: No registered users and 5 guests

cron