snha_ll {snha}

log-likelihood for the given snha graph and the given chain

Description

This function returns the log-likelihood for the given snha graph and the given chain. If the 'block.p.value' is lower than 0.05 than that the chain is not sufficient to capture the variable dependencies, p-values above 0.05 indicate a good coverage of the chain for the linear dependencies between the nodes.

Usage

snha_ll(graph,chain=NULL)

Arguments

graph

a snha graph object

chain

a chain object of a snha graph, if not given a data frame with the values is returned for all chains, default: NULL

Value

list with the following components: 'll.total', 'll.chain', 'll.rest', 'll.block', data frame 'df' with the columns 'chisq', 'p.value', 'block.df', 'block.ch', 'block.p.value'. If chain is not given an overall summary is made for all chains an returned as data frame.

Examples

 
data(swiss) 
sw.g=snha(swiss) 
snha_ll(sw.g,sw.g$chain$Catholic) 
head(snha_ll(sw.g))