test.updated.bn {bnstruct} | R Documentation |
check if an updated BN
is present in an InferenceEngine
.
Description
Check if an InferenceEngine actually contains an updated network, in order to provide the chance of
a fallback and use the original network if no belief propagation has been performed.
An InferenceEngine
built specifying a set of interventions will contain
an updated BN
with altered structure and no conditional probability tables
(unless they are computed by a belief propagation operation.)
Usage
test.updated.bn(x)
## S4 method for signature 'InferenceEngine'
test.updated.bn(x)
Arguments
x |
an |
Value
TRUE
if an updated network is contained in the InferenceEngine, FALSE
otherwise.
Examples
## Not run:
dataset <- BNDataset("file.header", "file.data")
bn <- BN(dataset)
ie <- InferenceEngine(bn)
test.updated.bn(ie) # FALSE
observations(ie) <- list("observed.vars"=("A","G","X"), "observed.vals"=c(1,2,1))
ie <- belief.propagation(ie)
test.updated.bn(ie) # TRUE
interventions <- list("intervention.vars"=("A","G","X"), "intervention.vals"=c(1,2,1))
ie2 <- InferenceEngine(bn, interventions = interventions)
test.updated.bn(ie2) # TRUE
## End(Not run)
[Package bnstruct version 1.0.15 Index]