Nothing
"validEdgeClasses" <-
function ()
{
result <- cbind(edgeTypes = c("VertexEdge", "Dashed", "Dotted",
"DoubleArrow", "DoubleConnected", "TripleConnected"),
edgeClasses = c("dg.VertexEdge", "dg.DashedEdge", "dg.DottedEdge",
"dg.DoubleArrowEdge", "dg.DoubleConnectedEdge", "dg.TripleConnectedEdge"))
dimnames(result) <- list(result[, 1], c("Label", "Class"))
return(result)
}
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