IdtMxSNDE-class: Class IdtMxSNDE

Description

IdtMxSNDE contains the results of a mixture model estimation for the Skew-Normal model, with the four different possible variance-covariance configurations.

Arguments

Slots

Hmcdt:: Indicates whether we consider an homoscedastic location model (TRUE) or a general model (FALSE)
CovConfCases:: List of the considered configurations
grouping:: Inherited from class IdtMxE. Factor indicating the group to which each observation belongs to
ModelNames:: Inherited from class IdtE. The model acronym, indicating the model type (currently, N for Normal and SN for Skew-Normal), and the configuration (Case 1 through Case 4)
ModelType:: Inherited from class IdtE. Indicates the model; currently, Gaussian or Skew-Normal distributions are implemented
ModelConfig:: Inherited from class IdtE. Configuration case of the variance-covariance matrix: Case 1 through Case 4
NIVar:: Inherited from class IdtE. Number of interval variables
SelCrit:: Inherited from class IdtE. The model selection criterion; currently, AIC and BIC are implemented
logLiks:: Inherited from class IdtE. The logarithms of the likelihood function for the different cases
AICs:: Inherited from class IdtE. Value of the AIC criterion
BICs:: Inherited from class IdtE. Value of the BIC criterion
BestModel:: Inherited from class IdtE. Indicates the best model according to the chosen selection criterion
SngD:: Inherited from class IdtE. Boolean flag indicating whether a single or a mixture of distribution were estimated. Always set to FALSE in objects of class IdtMxSNDE
Ngrps:: Inherited from class IdtMxE. Number of mixture components

Extends

Class IdtMxE, directly. Class IdtE, by class IdtMxE, distance 2.

Methods

No methods defined with class IdtMxSNDE in the signature.

Author

Pedro Duarte Silva <psilva@porto.ucp.pt>
Paula Brito <mpbrito.fep.up.pt>

References

Azzalini, A. and Dalla Valle, A. (1996), The multivariate skew-normal distribution. Biometrika 83(4), 715--726.

Brito, P., Duarte Silva, A. P. (2012), Modelling Interval Data with Normal and Skew-Normal Distributions. Journal of Applied Statistics 39(1), 3--20.