Fits the symmetric association model from Goodman (1979). Note the model is a reparameterized version of the quasi-symmetry model, so the quasi-symmetry model has the same fit indices.
Goodman_symmetric_association_model(n)a list containing x: design matrix used for the glm() regression beta: parameter estimates se: standard errors of beta g_squared: G^2 measure of fit chisq: X^2 measure of fit df: degrees of freedom expected: model-based expected cell counts
matrix of observed counts