Detecting colliders in DAGs
is_collider(.dag, .var, downstream = TRUE) is_downstream_collider(.dag, .var)
.dag | an input graph, an object of class |
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.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?
#> [1] TRUEis_downstream_collider(dag, "m_jr")#> [1] TRUE# a downstream collider is also treated as a collider is_collider(dag, "m_jr")#> [1] TRUE# but a direct collider is not treated as a downstream collider is_downstream_collider(dag, "m")#> [1] FALSE