cnFindBIC-method | R Documentation |
This is a model selection routine that finds a network in a set of networks using the BIC criteria.
cnFindBIC(object, numsamples)
object |
A |
numsamples |
The number of samples used for estimating |
The function returns the network with maximal BIC value from a list of networks
as obtained from one of the search-functions cnSearchOrder
, cnSearchSA
and cnSearchSAcluster
.
The formula used for the BIC is log(Likelihood) - 0.5*Complexity*log(numNodes)
.
A catNetwork
object with optimal BIC value.
N. Balov, P. Salzman
cnFindAIC
, cnFind
library(catnet) cnet <- cnRandomCatnet(numnodes=12, maxParents=3, numCategories=2) psamples <- cnSamples(object=cnet, numsamples=10) nodeOrder <- sample(1:12) nets <- cnSearchOrder(data=psamples, perturbations=NULL, maxParentSet=2, maxComplexity=36, nodeOrder) bicnet <- cnFindBIC(object=nets, numsamples=dim(psamples)[2]) bicnet
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