an object of class "oglmx"

argument passed to qr.solve, defines the tolerance for detecting linear dependencies in the hessian matrix to be inverted.

additional arguments, currently ignored.

object of class summary.oglmx.

character string describing the type of model estimated.

log-likelihood for the estimated model.

matrix with four columns and number of rows equal to the number of estimated parameters. Columns of the matrix correspond to estimated coefficients, standard errors, t-statistics and (two-sided) p-values.

the same data as in estimate but separated into a list with elements for each type of parameter estimate. The first element is for parameters in the mean equation, second element for parameters in the variance equation and the final element is for threshold parameters.

number of iterations used in function that maximises the log-likelihood.

McFadden's R^2 aka Pseudo-R^2. Calculated as:

R^2=1-\log{L_{fit}}/\log{L_0}

where \log{L_{fit}} is the log-likelihood for the fitted model and \log{L_0} is the log-likelihood from an intercept only model that estimates the probability of each alternative to be the sample average.

Akaike Information Criterion, calculated as:

AIC=2k-2\log{L_{fit}}

where k is the number of estimated parameters.

named vector of estimated parameters.