bcos2 {survivalMPL}

Breast Cosmesis Data

Description

Interval censored data described and given in full in Finkelstein and Wolfe (1985), discussed by More (2016, example 12.2) and available in the R package 'interval' (refer to ?bcos). Compared to the interval package version, bcos2 simply recode the lower value of left-censored data (NA instead of 0) and upper value of right-censored data (NA instead of Inf) to allow an easy identification of left-censored data by means of the function Surv when type=="interval2".

Usage

data(bcos2)

Format

A data frame with 94 observations on the following 3 variables.

left

a numeric vector

right

a numeric vector

treatment

a factor with levels Rad and RadChem

Source

Finkelstein, D.M., and Wolfe, R.A. (1985). A semiparametric model for regression analysis of interval-censored failure time data. Biometrics 41: 731-740.

Moore, D. K. (2016), Applied Survival Analysis Using R, Springer.

Examples

data(bcos2)