search for: checkconv

Displaying 2 results from an estimated 2 matches for "checkconv".

2014 Oct 19
3
Warnings en GLMM (lme4)
...hora de la selección del modelo final. El modelo me funciona, sin embargo me aparecen unos warnings que no sé a que se deben ni la importancia real en el cáculo de mi modelo. Mi pregunta es si alguien en el foro sabe porqué aparecen y como solucionarlos. Los warnings son: Warning messages: 1: In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv, : Model failed to converge with max|grad| = 0.00431561 (tol = 0.001, component 7) 2: In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv, : Model is nearly unidentifiable: very large eigenvalue - Resc...
2017 Dec 26
1
identifying convergence or non-convergence of mixed-effects regression model in lme4 from model output
...nly output I saved were the inferential statistics for my fixed and random effects. I did not save any output related to the performance to the machine learning algorithm used to fit the models (REML=FALSE). After running all the simulations, I got about two dozen messages of this kind: 25: In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,? ... : ? Model failed to converge with max|grad| = 4.49732 (tol = 0.002, component 1) 26: In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,? ... : ? Model is nearly unidentifiable: large eigenvalue r...