Dear all, I am writing my first stan program, with Rstan interface. In the model below, I intended to declare d to be a vector of latent (unobserved) Bernoulli variables. But I keep getting this “Rejecting initial value” error from rstan: " Chain 1: Rejecting initial value: Chain 1: Error eval…

Stan does not allow integer parameters, which is the primary issue with your model. You’ll want to search for how to marginalize out the integer parameters, though I don’t know how that’s done for a binomial model. Also keep in mind that if you want Stan to sample a parameter then it has to be in t…

@simonbrauer is right and I completely missed the int in model block. I wonder if the current version still emits an overflow error instead of correct msg. @rok_cesnovar

Thank you so so much for your comments. Actually, I specified d to be a binary random variable that accounts for the latent status for each individual, but d itself is not of my interest and this is why I didn’t include it in the parameter block.

[image] yizhang: I wonder if the current version still emits an overflow error instead of correct msg. The current RStan version definitely still emits an overflow error. RStan is either at 2.21 if the user install from CRAN, or at 2.26 if they installed rstan from the Stan r-packages reposi…

Rejecting initial value issue

Modeling

yizhang February 24, 2022, 1:13am 2

This indicates overflow of 32bit integer. Can you recompile the model and try it again with initial parameters specified?

Incorrect number of categories with categorical_lpmf for a mixture model

Topic		Replies	Views
Initialization between (-2, 2) failed after 100 attempts Modeling	4	6206	April 24, 2018
Initialization failed, initial values rejected Modeling	10	2583	October 17, 2018
Rejecting initial value Modeling rstan	1	583	May 5, 2022
Rstan Initialization error Modeling rstan	1	321	May 28, 2024
Error in rejecting initial values in Rstan Modeling rstan , techniques , fitting-issues	2	732	August 20, 2020

Rejecting initial value issue

Related topics