auxmat function

Auxiliary matrix

Returns an auxiliary matrix needed for computing the variance-covariance matrix of a CUBE model with covariates.

auxmat(m, vettcsi, vettphi, a, b, c, d, e)

Arguments

• m: Number of ordinal categories
• vettcsi: Vector of the feeling parameters of the Beta-Binomial distribution, with length equal to the number of observations
• vettphi: Vector of the overdispersion parameters of the Beta-Binomial distribution, with length equal to the number of observations
• a: Real number
• b: Real number
• c: Real number
• d: Real number
• e: Real number

References

Iannario, M. (2014). Modelling Uncertainty and Overdispersion in Ordinal Data, Communications in Statistics- Theory and Methods, 43 , 771--786

Piccolo, D. (2014). Inferential issues on CUBE models with covariates, Communications in Statistics. Theory and Methods, 44 , DOI: 10.1080/03610926.2013.821487