This function is DEPRECATED! Use
In a DAG, CPDAG, MAG or PAG determine which nodes are possible descendants of x on definite status paths.
adjacency matrix of type amat.pag
(integer) position of node x (node of interest) in the adjacency matrix.
A non-endpoint vertex
X on a path
p in a partial mixed
graph is said to be of a definite status if it is either a collider or a
definite non-collider on
p. The path
p is said to be of a
definite status if all non-endpoint vertices on the path are of a
definite status (see e.g. Maathuis and Colombo (2015), Def. 3.4).
A possible descendent of x can be reached moving to adjacent nodes of x but never going against an arrowhead.
Vector with possible descendents.
M.H. Maathuis and D. Colombo (2015). A generalized back-door criterion. Annals of Statistics 43 1060-1088.
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