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Predictions for parallel changes of dummy coded attribute levels

Posted: 14 Oct 2022, 14:24
by JuliavB
Dear Stephane,

is there any implemented way in apollo to estimate the change in probability to choose an option (A, B, C) depending on changes in two or three attribute levels?

For the change of attribute 1 (dummy coded) reference level to another level I´ve computed it with
exp(parameter estimate)

But now I am looking for a way to compute how much higher the probability is if attrribute 1 changes to another level and at the same time attribute 2 changes to another level as well.

Any advice is highly appreciated.
Thanks and best,
J.

Re: Predictions for parallel changes of dummy coded attribute levels

Posted: 25 Nov 2022, 13:48
by stephanehess
Hi

you can make a base prediction (with no changes) and compare it with one where both attributes change. See the MNL_SP_covariates example for guidance

Stephane