请修改下面的代码使它看起来不一样,注意将变量和函数命名更换:library(gsl) n<-c(20,30,25,30,40,20,50,30,20,20) y<-c(6,1,1,0,5,4,1,8,4,7) p_alpha_beta<-function(alpha,beta,n,y){ a<-exp(alpha)/(1+exp(alpha))^2 b<-1 for(i in 1:length(n)){ x1<-exp(alpha)/(1+exp(-beta))+y[i] y1<-exp(alpha)/(1+exp(beta))+n[i]-y[i] x2<-exp(alpha)/(1+exp(-beta)) y2<-exp(alpha)/(1+exp(beta)) b<-b*beta(x1,y1)/beta(x2,y2) } result<-a*b return(result) } estimate_lnk<-function(n,y){ alpha<-rt(length(n),df=4) beta<-rt(length(n),df=4) Num<-sum(alpha*p_alpha_beta(alpha,beta,n,y)/(dt(alpha,df=4)*dt(beta,df=4))) Den<-sum(p_alpha_beta(alpha,beta,n,y)/(dt(alpha,df=4)*dt(beta,df=4))) result<-Num/Den } result<-estimate_lnk(n,y)

这是修改后的代码，我将变量和函数命名更换了，同时也稍微修改了一下代码风格：

library(gsl)

sample_sizes <- c(20, 30, 25, 30, 40, 20, 50, 30, 20, 20)
successes <- c(6, 1, 1, 0, 5, 4, 1, 8, 4, 7)

compute_p_alpha_beta <- function(alpha, beta, sample_sizes, successes) {
  a <- exp(alpha) / (1 + exp(alpha))^2
  b <- 1
  for (i in 1:length(sample_sizes)) {
    x1 <- exp(alpha) / (1 + exp(-beta)) + successes[i]
    y1 <- exp(alpha) / (1 + exp(beta)) + sample_sizes[i] - successes[i]
    x2 <- exp(alpha) / (1 + exp(-beta))
    y2 <- exp(alpha) / (1 + exp(beta))
    b <- b * gsl_ran_beta_pdf(x1, y1) / gsl_ran_beta_pdf(x2, y2)
  }
  result <- a * b
  return(result)
}

estimate_lnk <- function(sample_sizes, successes) {
  alpha <- gsl_ran_tdist(10, 4)
  beta <- gsl_ran_tdist(10, 4)
  numerator <- sum(alpha * compute_p_alpha_beta(alpha, beta, sample_sizes, successes) / (gsl_ran_tdist_pdf(alpha, 4) * gsl_ran_tdist_pdf(beta, 4)))
  denominator <- sum(compute_p_alpha_beta(alpha, beta, sample_sizes, successes) / (gsl_ran_tdist_pdf(alpha, 4) * gsl_ran_tdist_pdf(beta, 4)))
  result <- numerator / denominator
}

result <- estimate_lnk(sample_sizes, successes)