plot_martingale_residuals: Function to plot the Martingale residuals of a fitted coxph...

In benjamin-w-campbell/coxtools: Tools for Cox Proportional Hazards Models

Description

This function assists the user in assessing model performance according to Martingale residuals. A list of plots. There will be two plots for each covariate. One showing the Martingale residuals per model with and without the covariate.

Usage

plot_martingale_residuals(coxph_fit = NULL)

Arguments

coxph_fit

The output from a fitted "coxph" call.

Value

A ggplot2 object presenting the martingale residuals for the model.

Examples

library(survival)
data("heart")
# Coerce from factor
heart$transplant <- as.numeric(heart$transplant)
# Rescale age
heart$age <- heart$age+48
coxph_fit <- coxph(Surv(start, stop, event) ~
              age + transplant +surgery,
             data = heart,
             x = TRUE)

plot_list <- plot_martingale_residuals(coxph_fit = coxph_fit)

Rmisc::multiplot(plotlist = plot_list, cols = 3)

benjamin-w-campbell/coxtools documentation built on May 31, 2019, 10:46 p.m.