ordinal: clmm.controlOld – R documentation

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ordinal

clmm.controlOld

Set control parameters for cumulative link mixed models

Description

Set control parameters for cumulative link mixed models

Usage

clmm2.control(method = c("ucminf", "nlminb", "model.frame"), ...,
             trace = 0, maxIter = 50, gradTol = 1e-4,
             maxLineIter = 50,
             innerCtrl = c("warnOnly", "noWarn", "giveError"))

Arguments

`method`	the optimizer used to maximize the marginal likelihood function.
`...`	control arguments passed on to the chosen optimizer; see `ucminf`, `optim`, and `nlminb` for details.
`trace`	numerical, if > 0 information is printed about and during the outer optimization process, if < 0 information is also printed about the inner optimization process. Defaults to `0`.
`maxIter`	the maximum number of Newton updates of the inner optimization. `50`.
`gradTol`	the maximum absolute gradient of the inner optimization.
`maxLineIter`	the maximum number of step halfings allowed if a Newton(-Raphson) step over shoots during the inner optimization.
`innerCtrl`	the use of warnings/errors if the inner optimization fails to converge.

Details

When the default optimizer, ucminf is used, the default values of that optimizers control options are changed to grtol = 1e-5 and grad = "central".

Value

a list of control parameters.

Author(s)

Rune Haubo B Christensen