standardizeResi {ACDm}R Documentation

Residual standardization

Description

Standardizes residuals from a fitted ACD model of class 'acdFit' by a probability integral transformation (taking the CDF, using the estimated distribution parameters, of the residuals) or by returning the Cox-Snell residuals.

Usage

standardizeResi(fitModel, transformation = "probIntegral")

Arguments

fitModel

a fitted ACD model of class 'acdFit'.

transformation

type of transformation done, either "probIntegral", or "cox-snell".

Details

The probability integral transformation is done by taking the CDF of the residuals from the model estimation, using the estimated distribution parameters. Under correct specification the probability integral transformed residuals should be iid. uniform(0, 1).

The Cox-Snell residuals is the computed by taking the integrated hazard of the residuals from the model estimation, using the estimated distribution parameters. Under correct specification the probability integral transformed residuals should be iid. unit exponentially distributed.


[Package ACDm version 1.0.4 Index]