htcID {SEMID}

Determines which edges in a mixed graph are HTC-identifiable.

Description

Uses the half-trek criterion of Foygel, Draisma, and Drton (2012) determine which edges in a mixed graph are generically identifiable. Depending on your application it faster to use the graphID.htcID function instead of this one, this function has the advantage of returning additional information.

Usage

htcID(mixedGraph, tianDecompose = T)

Arguments

mixedGraph

a MixedGraph object representing the L-SEM.

tianDecompose

TRUE or FALSE determining whether or not the Tian decomposition should be used before running the current generic identification algorithm. In general letting this be TRUE will make the algorithm faster and more powerful.

Value

see the return value of generalGenericID.

References

Foygel, R., Draisma, J., and Drton, M. (2012) Half-trek criterion for generic identifiability of linear structural equation models. Ann. Statist. 40(3): 1682-1713.

Jin Tian. 2005. Identifying direct causal effects in linear models. In Proceedings of the 20th national conference on Artificial intelligence - Volume 1 (AAAI'05), Anthony Cohn (Ed.), Vol. 1. AAAI Press 346-352.