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gRbase (version 1.6-1)

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

1.6-1

License

GPL (>= 2)

Maintainer

Søren Højsgaard

Last Published

August 4th, 2012

Functions in gRbase (1.6-1)

gRbase-internal

Internal gRbase functions

Simulated data from the Chest Clinic example

Function for plotting graphs using the 'igraph' package.

Class "gmData" graphical meta data

Milk composition data

Crown dieback in ash trees

Lean meat contents of 344 pig carcasses

Create undirected and directed graphs

Triangulation of an undirected graph

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

Representation of and operations on multidimensional tables

Random directed acyclic graph

Weightloss of rats

Simulate data from array

Coronary artery disease data

Mathematics marks for students

Class "gRfit" - fitted graphical models

Gastric Dumping

Maximal prime subgraph decomposition

Check properties of graphs.

gRbase-utilities

Utility functions for gRbase

Class "gModel" - graphical models

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

compile,propagate

Compile and propagate functions

RIP ordering and junction tree.

Partial correlation (matrix)

The Nutrimouse Dataset

Creates adjacency matrix for a graph from a list of generators

Admissible variable types in gmData objects

Growth curves of pigs in a 3x3 factorial experiment

Maximum cardinality search on undirected graph.

Moralize a directed acyclic graph

The package `gRbase': summary information

graph-operations1

Simple operations on undirected and directed acyclic graphs.

Risk factors for coronary heart disease.

Generate All Combinations of n Elements Taken m at a Time

graph-operations

Simple operations on undirected and directed acyclic graphs.

Generic function for model comparison

Minimal triangulation of an undirected graph

Chemical composition of wine

Lizard behaviour

Hierarchical log-linear models

Coercion of graphs

List of vertices and their parents for graph.

Get cliques of an undirected graph

Topological sort of vertices in directed

table-operations

Compute table margin or table slice