Structural equation model calculation technology based on formula constraint deterministic algorithm

The invention discloses a structural equation model calculation technology based on a formula constraint deterministic algorithm, and belongs to the technical field of electronic and information application software technologies. A structural equation model (SEM) generally adopts a partial least squares (PLS) method or a covariance fitting method (LISREL), and has the problems of possible misconvergence or too slow convergence, non-unique solution and the like. The invention provides a deterministic algorithm based on formula constraints, solves the problems, and has the innovation points that(1) the function relationship between SEM latent variables and explicit variables is understood and expressed based on a factor analysis thought; (2) a least square solution of a structural variablebased on unit module length constraint; and (3) an SEM deterministic algorithm based on path coefficient formula constraints. According to the invention, the components are combined through software DASC, and the research and