Modeling

Topic	Replies	Views	Activity
About the Modeling category	1	2479	July 23, 2019
Non-linear mixed effects model specification techniques , specification , brms	10	103	September 27, 2023
Newly-Specified BHM Returns "Initialization Failed" (Edited) specification	1	36	September 27, 2023
How to specify that a subset of parameters must be positive specification	18	323	September 27, 2023
Understanding brms model code: Ordered Probit with Ordered Predictor (monotonic effects) rstan , cmdstanr , brms	0	25	September 27, 2023
Reduce_sum function in stan	6	582	September 27, 2023
Why do I get: "Chain 1: Rejecting initial value: Log probability evaluates to log(0), i.e. negative infinity."? fitting-issues , ordinal-response , brms	3	57	September 27, 2023
Getting an error "... must be nonnegative!" despite constraining variables to positive values with <lower=0>? rstan , fitting-issues	6	142	September 27, 2023
Correcting for bad sampling the correct way techniques , specification	5	86	September 26, 2023
Bivariate Alpha-Skew Normal model	4	111	September 27, 2023
Non-linear model converges some of the time, but not most of the time. How to specify for more reliable convergence? rstan , techniques , fitting-issues , specification	0	47	September 26, 2023
Effect of sign invariance of eigen-decomposition on HMC	0	34	September 26, 2023
Generated quantities after sampling cmdstanr	2	76	September 26, 2023
Estimating different asymptotes given unknown time	1	48	September 26, 2023
Bayesian hierarchical modeling of a two-stage process model (Planning stages) techniques	2	75	September 26, 2023
How to implement positivity constraints to a function of data and parameters	1	58	September 26, 2023
Help - Conducting Count Data Model - Negative Binomial Model specification , economics , meta-analysis , count-data	1	39	September 26, 2023
Warnings for an errors-in-variables model and the risk of underestimating the slope rstan , fitting-issues	4	92	September 25, 2023
Incremental movement of a latent parameter in brms brms	1	61	September 25, 2023
Computing average marginal effects for logistic regression when exploiting sufficient statistics brms	1	66	September 24, 2023
Help translating multistate capture-recapture model from JAGS to STAN specification , ecology , capture-recapture	0	56	September 22, 2023
Hypothetico-Deductive and falsificationalist BDA - how does one make posterior predictive checks more severe and what is the role of LOO-CV?	3	138	September 22, 2023
Exceptions returned: "wishart_lpdf: random variable is not symmetric" and "gamma_lpdf: Random variable is inf, but must be positive finite!" fitting-issues , specification , cmdstanr	1	73	September 22, 2023
How to implement Gelman and Hill's shift and scale approach to nonidentifiabiltiy in Item Response model	5	101	September 22, 2023
How to compute simulations efficiently?	0	49	September 22, 2023
Presenting small elpd_diffs based on multiple fits of the same models loo	18	525	September 22, 2023
Strange error " /bin/sh: cmdstan: command not found" when using cmdstanr in RMarkdown	23	192	September 21, 2023
Instrumental learning task with 3 trial types cmdstanr , hierarchical-model , hbayesdm	0	35	September 21, 2023
(Mis)understanding reparameterization of the double-exponential distribution techniques , specification	3	124	September 21, 2023
How to model interaction between ordinal predictors techniques	4	333	September 21, 2023