12 июл. 2022 г. · Right, mean and sigma are parameters of the gaussian family, but they don't have a family themselves. Also my plots above could be misleading, ...

14 апр. 2022 г. · I've found location-scale models tend to behave better when modelling the log-variance (rather than log-sd as you have).

Find brms and related products for scientific research at Merck.

23 сент. 2024 г. · This vignette provides an introduction on how to fit distributional regression models with brms. We use the term distributional model to refer to a model.

3 окт. 2024 г. · This formula controls the parameterization of sigma , the linear-scale brms distributional parameters which represent standard deviations.

To model sigma in addition to the known standard errors, set argument sigma in function se to TRUE , for instance, yi | se(sei, sigma = TRUE) ~ 1 . For all ...

1 дек. 2022 г. · In this post, we discuss ways to set a prior for sigma when you know little about your sum-score data. Along the way, we intruduce ...

This is a description of how to fit the models in Probability and Bayesian Modeling using the Stan software and the brms package.

10 авг. 2020 г. · I tested it with both brms 2.13.9 and brms 2.13.5 and I get the same error. Am I something doing wrong or is this a bug?

26 июл. 2019 г. · The sqrt link likely leads to a bimodel posterior due to the symmetry of the square function. You may still do it already by using an identity ...