NDK BLOCK: SURVIVAL ANALYSIS

August 21, 28, and September 4, 2006

Errata Sheet

Example of Simpson’s paradox

Data sets:

Author written R functions

1. First save the TK.R.functions.R.txt text file on your computer. This file contains an R script file.

Must remove the .txt from the file name.

2. This R script file is named TK.R.functions.R

Place it in your R directory.

Then use the code > source(“TK.R.functions.R”)

to load the functions into your work session.

3. The function emphazplot has been replaced by the function g.emphaz.

Example: > library(survival)

> attach(aml)

> Surv0 <- Surv(weeks[group==0],status[group==0])

> Surv1 <- Surv(weeks[group==1],status[group==1])

> data <- list(Surv0,Surv1)

> g.emphaz(data, “ht”,legend=c(“nonmaintained”, “maintained”),main=“hi tilde”)

21.August.2006: in-class overhead slides by Mara. These are in a PDF file format.

28.August.2006: in-class overhead slides by Mara. These are in a PDF file format.