代码:
pvalue <- matrix(nrow = 9, ncol = 10000)
for(i in 1:9) {
for(j in 1:10000) {
pvalue[i,j]=integrate(dnorm,0,1)
}
}
错误:
Error in pvalue[i, j] <- integrate(dnorm, 0, 1) : number of items to
replace is not a multiple of replacement length`
答案 0 :(得分:1)
integrate(dnorm,0,1)
的输出是一个列表,而不是数字。
str(integrate(dnorm,0,1))
List of 5
$ value : num 0.341
$ abs.error : num 3.79e-15
$ subdivisions: int 1
$ message : chr "OK"
$ call : language integrate(f = dnorm, lower = 0, upper = 1)
- attr(*, "class")= chr "integrate"
工作代码是:
pvalue <- matrix(nrow = 9, ncol = 10000)
for(i in 1:9) {
for(j in 1:10000) {
pvalue[i,j] <- integrate(dnorm,0,1)$value
}
}