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Returns the Parent value of the common ancestor.
find_start_node(edges)
The Parent that is the common ancestor.
Dataframe comprising an adjacency matrix, with column names "Parent" and "Identity"
Rob Noble, robjohnnoble@gmail.com
edges1 <- data.frame(Parent = c(1,1,1,3,3), Identity = 2:6) find_start_node(edges1)
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