NeuDist (version 1.0.1)

survtimes: Survival Times of Guinea Pigs Infected with Tubercle Bacilli

Description

The survtimes data set contains the survival times (in days) of 72 guinea pigs infected with virulent tubercle bacilli. These data were originally reported by Bjerkedal (1960) in a study of the acquisition of resistance in guinea pigs subjected to varying doses of tubercle bacilli.

Usage

data(survtimes)

Value

An object of class "numeric".

The vector consists of 72 observed survival times (in days), each corresponding to a single guinea pig experimentally infected with virulent tubercle bacilli. Each value represents the number of days from infection to death or end of observation. The dataset is commonly used in survival analysis and lifetime modeling to illustrate time-to-event data, hazard behavior, and comparative statistical methods.

Format

A numeric vector of length 72 giving the survival times (in days).

Details

This dataset represents experimentally observed survival durations of guinea pigs infected with virulent tubercle bacilli. Survival analysis and lifetime modeling studies commonly use this dataset as an example for illustrating various statistical methodologies.

References

Bjerkedal, T. (1960). Acquisition of Resistance in Guinea Pigs Infected with Different Doses of Virulent Tubercle Bacilli. American Journal of Hygiene, 72(1), 130--148.

Examples

data(survtimes)

# Basic summary
summary(survtimes)

# Plotting a simple histogram of survival times
hist(
  survtimes,
  main = "Survival Times of Guinea Pigs",
  xlab = "Days",
  col = "lightgray",
  border = "white"
)