未指定CDF的覆盖率

时间:2018-09-21 23:12:56

标签: r resampling confidence-interval binomial-cdf

我使用下面的RewriteRule ^([\w]+)\.api(/(.*))?$ site.php?action=api_$1&arg=$3 [QSA,L] 代码来确定覆盖率。

r

但是,我获得的6.4%太低了。为什么我的百分比真的降低了? theta <- seq(0,1, length = 100) CD_theta <- function(y, p, n){ 1 - pbinom (y, size = n, prob = p) + 1/2*dbinom(y, size = n, prob = p) } y <- 5 n <- 100 phat <- y/n mytheta <- CD_theta(5, theta, 100) set.seed(650) ci <- list() n <- 100 B <- 1000 result = rep(NA, B) all_confInt <- function(B) { for (i in 1:B){ boot.sample <- sample(mytheta, replace = TRUE) lower <- theta[which.min(abs(boot.sample - .025))] upper <- theta[which.min(abs(boot.sample - .975))] ci[[i]] <- data.frame(lowerCI = lower, upperCI = upper) intervals <- unlist(ci) } return(intervals) } df <- data.frame(matrix(all_confInt(B), nrow=B, byrow=T)) colnames(df)[1] <- "Lower" colnames(df)[2] <- "Upper" names(df) dim(df) mean(df$Lower < phat & df$Upper > phat)*100 函数有什么问题吗?

0 个答案:

没有答案