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I have a model with effects coded parameters. The MNL results are good but I'd like to implement this with RP/MMNL or RPPANEL/panel MMNL logit. I can't seem to pass an effects coded parameter to NGene for the RP models, and I don't see the option written into the manual. Is there any way to do it? If not, please consider this for future versions. Thanks, Derek

Dear Nashkato

The procedure syntax is exactly the same for all model types. For example

Design
;alts = alt1, alt2
;rows = 12
;eff = (rppanel,d)
;rep = 500
;rdraws = halton(250)
;model:
U(alt1) = b1[3.94] + b2.effects[n,1.2,0.3|n,0.3,0.1] * A[0,1,2] + b3[2.5] * B[0,1] /
U(alt2) = b2 * A + b4[u,0.5,1.5] * C[2,4,6,8] $

The above syntax will produce a design in which the attribute A is effects coded.

John

Thanks, John. The code worked and it's great to see the capability. I appreciate it!