WHO Monica Data

Description

The monica data frame has 6357 rows and 12 columns. The dataset mifem (1295 rows) is the subset that has data for females.

Usage

  data(monica)
  data(mifem)
  

Format

Columns are:

outcome

mortality outcome, a factor with levels live, dead

age

age at onset

sex

m = male, f = female

hosp

y = hospitalized, n = not hospitalized

yronset

year of onset

premi

previous myocardial infarction event, a factor with levels y, n, nk not known

smstat

smoking status, a factor with levels c current, x ex-smoker, n non-smoker, nk not known

diabetes

a factor with levels y, n, nk not known

highbp

high blood pressure, a factor with levels y, n, nk not known

hichol

high cholesterol, a factor with levels y, n nk not known

angina

a factor with levels y, n, nk not known

stroke

a factor with levels y, n, nk not known

Source

Newcastle (Australia) centre of the Monica project; see the web site http://www.ktl.fi/monica

Examples

print("CART - Example 10.7")
summary(monica)
pause()

library(rpart)
monica.rpart <- rpart(outcome ~ ., data = monica, cp = 0.0025)
plotcp(monica.rpart)
printcp(monica.rpart)
pause()
monicab.rpart <- prune(monica.rpart, cp=0.006)
print(monicab.rpart)
summary(mifem)
pause()
mifem.rpart <- rpart(outcome ~ ., data = mifem, cp = 0.0025)
plotcp(mifem.rpart)
printcp(mifem.rpart)
pause()

mifemb.rpart <- prune(mifem.rpart, cp=0.006)
print(mifemb.rpart)