stablespec (version 0.2.3)
Stable Specification Search in Structural Equation Models
Description
An exploratory and heuristic approach for specification search
in Structural Equation Modeling. The basic idea is to subsample the original
data and then search for optimal models on each subset. Optimality is defined
through two objectives: model fit and parsimony. As these objectives are
conflicting, we apply a multi-objective optimization methods, specifically
NSGA-II, to obtain optimal models for the whole range of model complexities.
From these optimal models, we consider only the relevant model specifications
(structures), i.e., those that are both stable (occur frequently) and
parsimonious and use those to infer a causal model.