R: Calculate confidence intervals

confint.glmmTMB {glmmTMB} | R Documentation

## Calculate confidence intervals

### Description

Calculate confidence intervals

### Usage

    ## S3 method for class 'glmmTMB'
    confint(object, parm, level = 0.95, method = c("wald",
      "Wald", "profile", "uniroot"), component = c("all", "cond", "zi", "other"),
      estimate = TRUE, parallel = c("no", "multicore", "snow"),
      ncpus = getOption("profile.ncpus", 1L), cl = NULL, ...)

### Arguments

`object` | `glmmTMB` fitted object.
`parm` | Specification of a parameter subset after `component` subset has been applied.
`level` | Confidence level.
`method` | 'wald', 'profile', or 'uniroot': see Details function)
`component` | Which of the three components 'cond', 'zi' or 'other' to select. Default is to select 'all'.
`estimate` | (logical) add a third column with estimate ?
`parallel` | method (if any) for parallel computation
`ncpus` | number of CPUs/cores to use for parallel computation
`cl` | cluster to use for parallel computation
`...` | arguments may be passed to `profile.merMod` or `tmbroot`

### Details

Available methods are

wald

  These intervals are based on the standard errors calculated for parameters on the scale of their internal parameterization depending on the family. Derived quantities such as standard deviation parameters and dispersion parameters are backtransformed. It follows that confidence intervals for these derived quantities are asymmetric.

profile

  This method computes a likelihood profile for the specified parameter(s) using `profile.glmmTMB`; fits a spline function to each half of the profile; and inverts the function to find the specified confidence interval.

uniroot

  This method uses the `uniroot` function to find critical values of one-dimensional profile functions for each specified parameter.

### Examples

    data(sleepstudy, package="lme4")
    model <- glmmTMB(Reaction ~ Days + (1|Subject), sleepstudy)
    confint(model)
    ## Not run:
    confint(model,parm=1,method="profile")

    ## End(Not run)

[Package glmmTMB version 0.2.2.0 Index]