A data frame with the first column of the continuous-scaled diagnostic test scores; the second column of the binary reference scores; the third column of a factor vector to indicate the population that the observations come from.
一个数据框的第一列的连续缩放的诊断测试的分数;二进制基准评分的第二列中;一个因子矢量来表示的人口,观测来自第三列。
用法----------Usage----------
data(score)
格式----------Format----------
A data frame with 4214 observations on the following 3 variables.
4214以下3个变量的观察数据框。