brcancer {rstpm2}

German breast cancer data from Stata.

Description

See https://www.stata-press.com/data/r11/brcancer.dta.

Usage

data(brcancer)

Format

A data frame with 686 observations on the following 15 variables.

id

a numeric vector

hormon

hormonal therapy

x1

age, years

x2

menopausal status

x3

tumour size, mm

x4

tumour grade

x5

number of positive nodes

x6

progesterone receptor, fmol

x7

estrogen receptor, fmol

rectime

recurrence free survival time, days

censrec

censoring indicator

x4a

tumour grade>=2

x4b

tumour grade==3

x5e

exp(-0.12*x5)

Examples

data(brcancer)
## maybe str(brcancer) ; plot(brcancer) ...