以最大值最小值为顶的箱图:
假设,我们有A、B、C、D、E班级的某一门科目的最高分和最低分,还有整个年级的平均分,我们用箱图来观察各班最高分最低分距年级平均分的距离。...表示数据在最大最小之间位置的线型图:
若某位同学A, B, C, D, E五门课的成绩
X <- matrix(c(36,88,97,33,86,89,45,77,99,51,90,93,47,65,88...seagreen",10),
rep("magenta",5)),
lwd = 2,
xlab = "成绩",ylab= "科目",
yaxt = "n") #y轴的坐标标签去掉...#设置y轴的坐标标签
axis(2,at = c(1:5), labels = c("A","B","C","D","E"))
arrows(c(X[2,],X[2,]),c(Y,Y),
c(X[1,...],X[3,]), c(Y,Y),
col = "springgreen",
lwd = 2,
length = 0.15,
angle = 20,
)
从图中可以看出该学生的成绩离最低分近还是靠近最高分