is.root | R Documentation |
is.root
checks whether a node has parents or not.
is.root(node, dag)
node |
A character string indicating the name of the node. |
dag |
An object of class |
is.root
returns TRUE
or FALSE
depending on whether the node is root or not.
## Create a dataset # Continuous variables x <- rnorm(100) y <- rnorm(100) # Discrete variable z <- sample(letters[1:2],size = 100, replace = TRUE) data <- data.frame(C1 = x, C2 = y, D1 = z, stringsAsFactors = FALSE) ## Get DAG dag <- LearningHC(data) ## Check if a node is root is.root("C1", dag)
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