On this R-data statistics page, you will find information about the VA data set which pertains to Veteran's Administration Lung Cancer Trial. The VA data set is found in the MASS R package. You can load the VA data set in R by issuing the following command at the console data("VA"). This will load the data into a variable called VA. If R says the VA data set is not found, you can try installing the package by issuing this command install.packages("MASS") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the VA R data set. The size of this file is about 3,616 bytes.

Veteran's Administration Lung Cancer Trial

Description

Veteran's Administration lung cancer trial from Kalbfleisch & Prentice.

Usage

VA

Format

A data frame with columns:

stime

survival or follow-up time in days.

status

dead or censored.

treat

treatment: standard or test.

age

patient's age in years.

Karn

Karnofsky score of patient's performance on a scale of 0 to 100.

diag.time

times since diagnosis in months at entry to trial.

cell

one of four cell types.

prior

prior therapy?

Source

Kalbfleisch, J.D. and Prentice R.L. (1980) The Statistical Analysis of Failure Time Data. Wiley.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

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Dataset imported from https://www.r-project.org.