Iplot: Influential Plot

In VZoche-Golob/AFTtools: Tools for the Data Preparation, Fitting and Diagnostics of Accelerated Failure Times Models

Description

Plot of the relative parameter change due to addition of each observation. In fact, it nicely plots residuals.survreg(model, type = "dfbeta") for each fixed effect separately.

Usage

Iplot(model, limit = 10)

Arguments

model	An object of class survreg.
limit	Relative parameter changes above limit% are marked in red.

Note

If the model includes frailties, they have to be estimated with sparse = FALSE to allow the residuals to be extracted.

References

W. R. Swindell, „ACCELERATED FAILURE TIME MODELS PROVIDE A USEFUL STATISTICAL FRAMEWORK FOR AGING RESEARCH“, Exp Gerontol, Bd. 44, Nr. 3, S. 190–200, März 2009.

VZoche-Golob/AFTtools documentation built on May 9, 2019, 9:42 p.m.