最佳答案:dnorm(x, mean = 0, sd = 1, log = FALSE)pnorm(q, mean = 0, sd = 1, lower.tail = TRUE, log.p = FALSE)q
dnorm(x, mean = 0, sd = 1, log = FALSE)pnorm(q, mean = 0, sd = 1, lower.tail = TRUE, log.p = FALSE)qnorm(p, mean = 0, sd = 1, lower.tail = TRUE, log.p = FALSE)rnorm(n, mean = 0, sd = 1)
几种用法如上,大致知道,dnorm是求正态分布密度(可理解分布密度曲线),pnorm是正态分布函数(可理解为求曲线下面积)rnorm是正态分布取随机数,那qnorm是什么?还有lower tail 如果是ture的话,得出的就是X<=x的分位数,为假的话就是从X>x的方法寻找这个值。