data-chestSim function

Simulated data from the Chest Clinic example

Simulated data from the Chest Clinic example (also known as the Asia example) from Lauritzen and Spiegelhalter, 1988 (see reference below). data

Format

A data frame with 500 observations on the following 8 variables.

• asia: Recent visit to Asia?; a factor with levels yes no
• tub: Has tuberculosis?; a factor with levels yes no
• smoke: Is a smoker?; a factor with levels yes no
• lung: Has lung cancer?; a factor with levels yes no
• bronc: Has bronchitis?; a factor with levels yes no
• either: Either lung cancer or tuberculosis?; a factor with levels yes no
• xray: Positive x-ray? a factor with levels yes no
• dysp: Dyspnoea (shortness of breath)?; a factor with levels yes no

data(chestSim500)

Details

Notice that the chest clinic example is a contrieved example; it does not originate from an empirical study.

Examples

data(chestSim500)
## maybe str(chestSim500) ; plot(chestSim500) ...

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.