data-chestSim: Simulated data from the Chest Clinic example
Description
Simulated data from the Chest Clinic example (also known as the Asia
example) from Lauritzen and Spiegelhalter, 1988 (see reference below).
Usage
data(chestSim500)
Arguments
Format
A data frame with 500 observations on the following 8 variables.
asia
Recent visit to Asia?; a factor with levels yesno
tub
Has tuberculosis?; a factor with levels yesno
smoke
Is a smoker?; a factor with levels yesno
lung
Has lung cancer?; a factor with levels yesno
bronc
Has bronchitis?; a factor with levels yesno
either
Either lung cancer or tuberculosis?; a factor with levels yesno
xray
Positive x-ray? a factor with levels yesno
dysp
Dyspnoea (shortness of breath)?; a factor with levels yesno
Details
Notice that the chest clinic example is a contrieved
example; it does not originate from an empirical study.
References
Lauritzen and Spiegelhalter (1988) Local Computations
with Probabilities on Graphical Structures and their
Application to Expert Systems (with
Discussion). J. Roy. Stat. Soc. 50, p. 157-224.