CAR_calcNumIslands

Calculate number of islands (distinct connected groups) based on a CAR adjacency matrix.

A system for writing hierarchical statistical models largely
compatible with 'BUGS' and 'JAGS', writing nimbleFunctions to operate models
and do basic R-style math, and compiling both models and nimbleFunctions via
custom-generated C++. 'NIMBLE' includes default methods for MCMC, Laplace
Approximation, Monte Carlo Expectation Maximization, and some other tools.
The nimbleFunction system makes it easy to do things like implement new MCMC
samplers from R, customize the assignment of samplers to different parts of
a model from R, and compile the new samplers automatically via C++ alongside
the samplers 'NIMBLE' provides. 'NIMBLE' extends the 'BUGS'/'JAGS' language
by making it extensible: New distributions and functions can be added,
including as calls to external compiled code. Although most people think
of MCMC as the main goal of the 'BUGS'/'JAGS' language for writing models,
one can use 'NIMBLE' for writing arbitrary other kinds of model-generic
algorithms as well. A full User Manual is available at <https://r-nimble.org>.

Christopher Paciorek

nimble

MCMC, Particle Filtering, and Programmable Hierarchical Modeling

Perry de Valpine

Daniel Turek

Nick Michaud

Cliff Anderson-Bergman

Fritz Obermeyer

Claudia Wehrhahn Cortes

Abel Rodríguez

Duncan Temple Lang

Wei Zhang

Sally Paganin

Joshua Hug

Paul van Dam-Bates

Jagadish Babu

Lauren Ponisio

Peter Sujan

CAR_calcNumIslands function

<dl><dt>adj</dt>
<dd>vector of indices of the adjacent locations (neighbors) of each spatial location. This is a sparse representation of the full adjacency matrix.</dd>
<dt>num</dt>
<dd>vector giving the number of neighbors of each spatial location, with length equal to the total number of locations.</dd></dl>

Arguments

Author

Calculate number of islands based on a CAR adjacency matrix. — CAR_calcNumIslands

<dl>

<dt>adj</dt>
<dd>vector of indices of the adjacent locations (neighbors) of each spatial location. This is a sparse representation of the full adjacency matrix.</dd>


<dt>num</dt>
<dd>vector giving the number of neighbors of each spatial location, with length equal to the total number of locations.</dd>

</dl>

Calculate number of islands based on a CAR adjacency matrix.

CAR_calcNumIslands: Calculate number of islands based on a CAR adjacency matrix.

Description

Usage

Arguments

Author

See Also