Classification of individuals by gender, occupational category and occurrence of heart disease
个人分类按性别,职业类别和心脏疾病的发生
用法----------Usage----------
data(Heart)
格式----------Format----------
A 3-dimensional array resulting from cross-tabulating 3 variables for 21522 observations. The variable names and their levels are:
一个3维数组造成的,交叉制表的3个变量为21522观测。变量的名字和他们的水平: