这是prop.test函数:
baby.prop.test = function (x, n, p, conf.level = 0.95) {
# ...
return(prop.test(x,n,p,conf.level))
#baby.prop.test$statistic
}
# test case
baby.prop = baby.prop.test(72, 100, .7, conf.level=.99)
stopifnot(isTRUE(all.equal(as.numeric(baby.prop$statistic), .43643578)))
stopifnot(isTRUE(all.equal(as.numeric(baby.prop$p.value), .66252058)))
这是错误:
Error in match.arg(alternative) :
'arg' must be NULL or a character vector
知道什么是错的吗?
答案 0 :(得分:6)
根据formals(prop.test)
或?prop.test
,第四个参数称为alternative
,必须是c("two.sided", "less", "greater")
的字符。你的第四个元素是conf.level
(这是prop.test
的第五个元素,顺序很重要)。要“忽略”参数的顺序,你必须为你的参数命名(至少是conf.level
):
prop.test(x, n, p, conf.level=conf.level)