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gRbase (version 1.5-0)

A package for graphical modelling in R

Description

The gRbase package provides certain general constructs which are used by other graphical modelling packages. This includes 1) the concept of gmData (graphical meta data), 2) several graph algorithms 3) facilities for table operations, 4) functions for testing for conditional independence. gRbase also illustrates how hierarchical log-linear models (hllm) may be implemented.

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Version

Install

install.packages('gRbase')

Monthly Downloads

1,753

Version

1.5-0

License

GPL (>= 2)

Maintainer

S�ren H�jsgaard

Last Published

March 3rd, 2012

Functions in gRbase (1.5-0)

dietox

Growth curves of pigs in a 3x3 factorial experiment
milkcomp

Milk composition data
chestSim

Simulated data from the Chest Clinic example
cad

Coronary artery disease data
wine

Chemical composition of wine
hllm

Hierarchical log-linear models
arrayCombine

Combine arrays
gRbase

The package `gRbase': summary information
combnPrim

Generate All Combinations of n Elements Taken m at a Time
carcass

Lean meat contents of 344 pig carcasses
mpd

Maximal prime subgraph decomposition
rats

Weightloss of rats
glist2adjMAT

Creates adjacency matrix for a graph from a list of generators
lizard

Lizard behaviour
dumping

Gastric Dumping
querygraph

Query a graph
graph-operations1

Simple operations on undirected and directed acyclic graphs.
BodyFat

Body Fat Data
mcs

Maximum cardinality search on undirected graph.
compile,propagate

Compile and propagate functions
validVarTypes

Admissible variable types in gmData objects
gRbase-utilities

Utility functions for gRbase
cov2pcor

Partial correlation (matrix)
mildew

Mildew fungus
mathmark

Mathematics marks for students
iplot

Function for plotting graphs using the 'igraph' package.
ashtrees

Crown dieback in ash trees
triangulate

Triangulation of an undirected graph
rip

RIP ordering and junction tree.
minimalTriang

Minimal triangulation of an undirected graph
Nutrimouse

The Nutrimouse Dataset
breastcancer

Gene expression signatures for p53 mutation status in 250 breast cancer samples
edgeList

Find edges in a graph and edges not in a graph.
ug

Create undirected and directed graphs
reinis

Risk factors for coronary heart disease.
moralize

Moralize a directed acyclic graph
Setoperations

Set operations
compareModels

Generic function for model comparison
gRbase-internal

Internal gRbase functions
parray

Representation of and operations on multidimensional tables
gModel

Class "gModel" - graphical models
gRfit

Class "gRfit" - fitted graphical models
table-operations

Compute table margin or table slice
gmData

Class "gmData" graphical meta data