我有一个这个数据集structure(list(Color = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L,
3L, 3L, 3L, 3L, 3L, 3L, 3L), .Label = c("blue", "green", "red"
), class = "factor")), .Names = "Color", row.names = c(NA, -30L
), class = "data.frame")
我想添加一个列,将平均值 5 和方差 2 分配给蓝色,将平均值 10 和方差 4 分配给绿色,将平均值 100 和方差 15 分配给红色..