Generation of multivariate ordinal data.
Validates input correlation matrix
Generates multivariate ordinal data from binary parameters
Converts multivariate binary data to multivariate ordinal data
Generates multivariate binary data given marginal probabilities and correlation.
Validates matrix of ordinal probabilities
Checks whether the dimension of marginal probability matrix matches the dimension of correlation matrix.
Computes the tetrachoric correlation matrix. If it is non-positive definite, a nearest positive definite matrix is used.
Collapses the ordinal categories to binary ones
Calculates intermediate binary correlation matrix