A helper function for edgewiseIdentifyStep, creates an
identifier function based on its given parameters. This created identifier
function will identify the directed edges from 'targets' to 'node.'
createEdgewiseIdentifier(
idFunc,
sources,
targets,
node,
solvedNodeParents,
sourceParentsToRemove
)an identification function
identification of edge coefficients often requires that other edge coefficients already be identified. This argument should be a function that produces all such identifications. The newly created identifier function will return these identifications along with its own.
the sources of the half-trek system.
the targets of the half-trek system (these should be the
parents of node).
the node for which all incoming edges are to be identified (the tails of which are targets).
the parents of node that have been solved
a list of the parents of the sources that should have their edge to their respect source removed.