Detecting colliders in DAGs
Detecting colliders in DAGs
is_collider(.dag, .var, downstream = TRUE) is_downstream_collider(.dag, .var)
.dag |
an input graph, an object of class |
.var |
a character vector of length 1, the potential collider to check |
downstream |
Logical. Check for downstream colliders? Default is |
Logical. Is the variable a collider or downstream collider?
dag <- dagify(m ~ x + y, m_jr ~ m) is_collider(dag, "m") is_downstream_collider(dag, "m_jr") # a downstream collider is also treated as a collider is_collider(dag, "m_jr") # but a direct collider is not treated as a downstream collider is_downstream_collider(dag, "m")
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