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

In splancs: Spatial and Space-Time Point Pattern Analysis

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

Rowlingson, B. and Diggle, P. 1993 Splancs: spatial point pattern analysis code in S-Plus. Computers and Geosciences, 19, 627-655; the original sources can be accessed at: https://www.maths.lancs.ac.uk/~rowlings/Splancs/. See also Bivand, R. and Gebhardt, A. 2000 Implementing functions for spatial statistical analysis using the R language. Journal of Geographical Systems, 2, 307-317.

See Also

tribble, dsquare

splancs documentation built on May 29, 2024, 6:22 a.m.