multinomial model help

[Brook Milligan]

I am trying to get a multinomial model (see attached) to work but get the following error:

Error in genVarInfo3() : inconsistent dimensions for variable lambda
Calls: nimbleMCMC ... mcmc_createModelObject -> nimbleModel -> <Anonymous> -> genVarInfo3
Execution halted

I suspect the problem is from the following line:

q[1:N] <- k[1:N] ^ lambda

in which I try to raise a vector to a scalar power. However, I may be misunderstanding.

Is this not possible? If not, how can a model like this be expressed?

Thanks for your help.

Cheers,
Brook

[Dr. Heather Gaya]

Hey Brook,

Check your initial values. runif(0.01, 1) doesn't create any values. I think you meant runif(1, .01, 1). 

-Heather 

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[Brook Milligan]

Hi Heather,

Thanks a lot. Of course that was the problem. I was too used to the model section, where the extra argument is not needed, that I overlooked it. Good catch.

Cheers,
Brook