profile_loglik: Profile Log-Likelihood

In likelihood.model: Likelihood-Based Statistical Inference in the Fisherian Tradition

Profile Log-Likelihood

Description

Computes the profile log-likelihood for a subset of parameters. For each value of the parameters of interest, the remaining (nuisance) parameters are optimized out.

Usage

profile_loglik(x, ...)

## S3 method for class 'fisher_mle'
profile_loglik(
  x,
  data,
  model,
  param,
  grid = NULL,
  n_grid = 50,
  range_mult = 4,
  ...
)

Arguments

x	A fisher_mle object
...	Additional arguments passed to loglik
data	Data frame used for likelihood computation
model	The likelihood model used for fitting
param	Index or name of parameter(s) to profile
grid	Optional grid of values to evaluate (vector or matrix)
n_grid	Number of grid points if grid not specified (default 50)
range_mult	Multiplier for grid range based on SE (default 4)

Details

The profile likelihood is useful for:

• Visualizing the likelihood surface

• Computing likelihood intervals

• Eliminating nuisance parameters

Value

A data frame with parameter values and profile log-likelihood

likelihood.model documentation built on March 19, 2026, 9:07 a.m.