checkConv: Extended Convergence Checking

In lme4: Linear Mixed-Effects Models using 'Eigen' and S4

Extended Convergence Checking

Description

Primarily internal code for checking optimization convergence, see convergence for a more detailed discussion.

Usage

checkConv(derivs, coefs, ctrl, lbound, debug = FALSE)

Arguments

derivs	typically the "derivs" attribute of optimizeLmer(); with "gradients" and possibly "Hessian" component
coefs	current coefficient estimates
ctrl	list of lists, each with action character strings specifying what should happen when a check triggers, and tol numerical tolerances, as is the result of lmerControl()$checkConv.
lbound	vector of lower bounds for random-effects parameters only (length is taken to determine number of RE parameters)
debug	enable debugging output, useful if some checks are on "ignore", but would "trigger"

Value

A result list containing

code	The return code for the check
messages	A character vector of warnings and messages generated by the check

See Also

convergence

lme4 documentation built on July 3, 2024, 5:11 p.m.