R: Log-likelihood for the Diggle-Rowlingson raised incidence...

triblik {splancs}

R Documentation

Log-likelihood for the Diggle-Rowlingson raised incidence model

Description

Calculates the log-likelihood for the Diggle-Rowlingson raised incidence model.

Usage

triblik(ccflag, vars=NULL, alphas=NULL, betas=NULL, rho, 
 which=1:length(alphas), covars=NULL, thetas=NULL)

Arguments

`ccflag`	Case-control flag : a vector of ones and zeroes.
`vars`	A matrix where `vars[i,j]` is the distance squared from point `i` to source `j`.
`alphas`	The `alpha` parameters.
`betas`	The `beta` parameters.
`rho`	The `rho` parameter.
`which`	Defines the mapping from sources to parameters.
`covars`	A matrix of covariates to be modelled as log-linear terms. The element `covars[i,j]` is the value of covariate `j` for case/control `i`.
`thetas`	The covariate parameters.

Value

The log-likelihood for the given parameters and the given distances and optional covariates is returned.

References