coxzphplot: Graphical Test of Proportional Hazards

In autoReg: Automatic Linear and Logistic Regression and Survival Analysis

Graphical Test of Proportional Hazards

Description

Tis is a ggplot version of plot.cox.zph. Displays a graph of the scaled Schoenfeld residuals, along with a smooth curve.

Usage

coxzphplot(x, resid = TRUE, se = TRUE, var = NULL, hr = FALSE, add.lm = FALSE)

Arguments

x	result of the cox.zph function.
resid	a logical value, if TRUE the residuals are included on the plot, as well as the smooth fit.
se	a logical value, if TRUE, confidence bands at two standard errors will be added.
var	The set of variables for which plots are desired. It can be integer or variable names
hr	logical If true, plot for hazard ratio, If false, plot for coefficients
add.lm	logical If true, add linear regression line

Value

A facetted ggplot

Examples

library(survival)
vfit <- coxph(Surv(time,status) ~ trt + factor(celltype) + karno + age, data=veteran, x=TRUE)
x <- cox.zph(vfit)
coxzphplot(x)
coxzphplot(x,var="karno",add.lm=TRUE)

autoReg documentation built on Nov. 14, 2023, 9:07 a.m.