ggm {ggm} | R Documentation |
This package provides functions for defining and manipulating graphs and for fitting graphical Gaussian models.
The main functions can be classified as follows.
UG
, DAG
, makeAG
;
pa
, bd
, cliques
,
conComp
, fundCycles
, dSep
;
inducedCovGraph
, inducedConGraph
;
inducedRegGraph
, inducedChainGraph
,
inducedDAG
;
fitDag
, fitConGraph
,
fitCovGraph
, fitAncestralGraph
;
shipley.test
;
isGident
, checkIdent
;
fitDagLatent
.
The package is intended as a contribution to the gR-project derscribed by Lauritzen (2002).
Giovanni M. Marchetti, Dipartimento di Statistica ``G. Parenti''. Universit`a di Firenze, Italy;
Mathias Drton, Department of Statistics, University of Chicago, USA.
Many thanks to Fulvia Pennoni for testing some of the functions, to Elena Stanghellini for discussion and examples and to Claus Dethlefsen and Jens Henrik Badsberg for suggestions and corrections. Helpful discussions with Nanny Wermuth, are gratefully acknowledged. Thanks also to Michael Perlman and Thomas Richardson.
Giovanni Marchetti has been supported by MIUR, Italy, under grant scheme PRIN 2002, and Mathias Drton has been supported by NSF grant DMS-9972008 and University of Washington RRF grant 65-3010.
Lauritzen, S. L. (2002). gRaphical Models in R. R News, 3(2)39.