我希望(1)通过一个变量()分组数据State,(2)在每个组内找到另一个变量(Employees)的最小值行,以及(3)提取整行.
(1)和(2)是简单的单行,我觉得(3)也应该是,但我不能得到它.
这是一个示例数据集:
> data
State Company Employees
1 AK A 82
2 AK B 104
3 AK C 37
4 AK D 24
5 RI E 19
6 RI F 118
7 RI G 88
8 RI H 42
data <- structure(list(State = structure(c(1L, 1L, 1L, 1L, 2L, 2L, 2L,
2L), .Label = c("AK", "RI"), class = "factor"), Company = structure(1:8, .Label = c("A",
"B", "C", "D", "E", "F", "G", "H"), class = "factor"), Employees …