Topics tagged covariance

Topic	Replies	Views	Activity
Bivariate model for a meta analysis of diagnostic test accuracy Modeling specification , covariance , meta-analysis	8	1225	February 1, 2024
Covariance issues with Dynamic Factor Model with large N Modeling covariance , time-series	7	381	January 17, 2024
Covariance prior via lkj_corr_cholesky Modeling fitting-issues , covariance	4	296	December 21, 2023
Hierarchical dynamic linear model with rSTAN, problems with fitting a covariance matrix Modeling rstan , fitting-issues , specification , covariance , hierarchical-model	7	1095	October 16, 2023
Covariance between random intercepts Modeling covariance	11	459	July 6, 2023
Non-Centered, Cholesky Factored Covariance Matrix Converges to Inconsistent Parameter Values; Issue with Model Specification? Modeling techniques , specification , covariance , ordinal-response	11	562	August 16, 2022
Non-Centered Cholesky Factor Correlation Matrix Draws Imply Non-Unit Self-Correlation Modeling pystan , techniques , specification , covariance	2	476	July 11, 2022
Comparing Wishart prior against LKJ prior Modeling rstan , covariance , prior-choice , multivariate-normal	5	1029	July 4, 2022
Covariance structures in brms? Modeling covariance	0	957	April 9, 2022
Conditional multilevel IRT and the level-2 correlation structure brms irt , covariance	4	766	December 22, 2021
Constraining covariance matrix to two parameters (Contemporaneous Correlation) Modeling rstan , performance , covariance	0	640	December 9, 2021
Modeling Multivariate Normal Variance-Covariance Modeling specification , covariance , multivariate-normal	4	594	September 29, 2021
Estimating covariance between fixed and random effects (brms) brms covariance	3	925	June 11, 2021
Hierarchical model with covariance relationship between parameters: applying different truncations Modeling covariance , truncated , hierarchical-model	10	528	April 18, 2021
Correlation between Gaussian processes Modeling techniques , covariance , gaussian-process	6	1185	March 15, 2021
Gaussian process for parameters that are strictly positive Modeling covariance , gaussian-process	5	1206	March 9, 2021
Hyperparameters on group effects covariance matrix brms covariance , mixed-model	2	626	March 2, 2021
Covariance Matrix Not Symmetric for LKJ prior Modeling fitting-issues , covariance	1	1028	February 22, 2021
Multivariate normal covariance matrix Modeling specification , covariance	5	917	December 8, 2020
Multivariate normal data covariance estimation Modeling performance , covariance , multivariate-normal	3	1188	May 10, 2020
Initialization Issues with Cholesky Factorization of Covariance Matrix Modeling performance , covariance , prior-choice	1	875	April 25, 2020
Recommended prior for covariance matrix Modeling covariance , prior-choice	5	5486	December 21, 2017