MLE (version 1.5)

Column-wise MLE of the ordinal model without covariates: Column-wise MLE of the ordinal model without covariates

Description

Column-wise MLE of the ordinal model without covariates.

Usage

colordinal.mle(y, link = "logit")

Value

A list including:

param

A matrix with the intercepts (threshold coefficients) of the model applied to each column (or variable).

loglik

The log-likelihood values.

Arguments

y

A numerical matrix with values 1, 2, 3,..., not zeros, or a data.frame with ordered factors.

link

This can either be "logit" or "probit". It is the link function to be used.

Author

Michail Tsagris and Sofia Piperaki.

R implementation and documentation: Michail Tsagris and Sofia Piperaki .

Details

Maximum likelihood of the ordinal model (proportional odds) is implemented. See for example the "polr" command in R or the examples.

References

Agresti, A. (2002) Categorical Data. Second edition. Wiley.

See Also

ordinal.mle

Examples

y <- matrix( rbinom(100 * 10, 2, 0.5) + 1, ncol = 10 )
res <- colordinal.mle(y, link = "probit")