Helper to expand nodal expression
Arguments
- model
A
causal_model
. A model object generated bymake_model
.- query
A character string. An expression defining nodal types to interrogate. An expression of the form "Y[X=1]" asks for the value of Y when X is set to 1
- node
A character string. The quoted name of a node.
- join_by
A logical operator. Used to connect causal statements: AND ('&') or OR ('|'). Defaults to '|'.