Create domain constraint specification — mle

Specifies domain constraints for optimization. The support function checks if parameters are valid, and the project function maps invalid parameters back to valid ones.

Usage

mle_constraint(support = function(theta) TRUE, project = function(theta) theta)

Arguments

support: Function testing if theta is in support (returns TRUE/FALSE)
project: Function projecting theta onto support

Value

An mle_constraint object

Examples

# Positive parameters only
constraint <- mle_constraint(
  support = function(theta) all(theta > 0),
  project = function(theta) pmax(theta, 1e-8)
)

# Parameters in [0, 1]
constraint <- mle_constraint(
  support = function(theta) all(theta >= 0 & theta <= 1),
  project = function(theta) pmax(0, pmin(1, theta))
)

# No constraints (default)
constraint <- mle_constraint()