R: Calculate profiles for objects of class 'brglm'.

profile.brglm {brglm} | R Documentation

## Calculate profiles for objects of class 'brglm'.

### Description

Creates `"profile.brglm"` objects to be used for the calculation of confidence intervals and for plotting.

### Usage

    ## S3 method for class 'brglm'
    profile(fitted, gridsize = 10, stdn = 5,
            stepsize = 0.5, level = 0.95,
            which = 1:length(coef(fitted)), verbose = TRUE,
            zero.bound = 1e-08, scale = FALSE, ...)

### Arguments

`fitted` | an object of class `"brglm"`.
`gridsize` | as in `profileModel`.
`stdn` | as in `profileModel`.
`stepsize` | as in `profileModel`.
`level` | `qchisq(level,1)` indicates the range that the profiles must cover.
`which` | as in `profileModel`.
`verbose` | as in `profileModel`.
`zero.bound` | as in `profileModel`.
`scale` | as in `profileModel`.
`...` | further arguments passed to or from other methods.

### Details

`profile.brglm` calculates the profiles of the appropriate objectives to be used for the construction of confidence intervals for the bias-reduced estimates (see `confint.brglm` for the objectives that are profiled).

### Value

An object of class `"profile.glm"` with attribute “level” corresponding to the argument `level`. The object supports the methods `print`, `plot`, `pairs` and `confint` and it is a list of the components:

`profilesML` | a `"profileModel"` object containing the profiles of the ordinary deviance for the maximum likelihood fit corresponding to `fitted`.
`profilesBR` | `NULL` if `method = "glm.fit"` in `brglm`. If `method = "brglm.fit"` and `pl = TRUE`, `profilesBR` is a `"profileModel"` object containing the profiles of the penalized deviance for the parameters of `fitted`. If `method = "brglm.fit"` and `pl = FALSE` `profilesBR` is a `"profileModel"` object containing the profiles of the modified score statistic (see `profileObjectives`) for the parameters of `fitted`.

### Note

Objects of class `"profile.brglm"` support the methods:

- `print`which prints the `"level"` attribute of the object, as well as the supported methods.

- `confint`see `confint.brglm`.

- `plot`see `plot.profile.brglm`.

- `pairs`see `plot.profile.brglm`.

### Author(s)

Ioannis Kosmidis, i.kosmidis@ucl.ac.uk

### See Also

`profileModel`, `profile.brglm`.

### Examples

    # see example in 'confint.brglm'.

[Package brglm version 0.5-9 Index]