如何从指数分布创建多列数据表

Question

我需要创建一个客户到达时间、客户等待时间、服务时间和客户离开时间的多列表。 服务时间是收银员帮助顾客所需的时间。 到达时间和服务时间由使用 rexp 命令的函数提供。

该表需要如下所示： table

我的代码如下所示：

singleTime = function(Rate)
{
  data = rexp(1,Rate)
  return(data)
}

waitTimes = function(m,arrivalRate,serviceRate)
{
  arrivalTimes = c(1:m)
  waitTimes = c(1:m)
  serviceTimes = c(1:m)
  leaveTimes = c(1:m)
  previousLeaveTime = 0
  for(i in (1:m))
  {
    arrivalTimes[i] = singleTime(arrivalRate)
    if(i == 0)
    {
      waitTimes[i] = 0
    }
    else if((previousLeaveTime - arrivalTimes[i])<= 0)
    {
      waitTimes[i] = 0
    }
    else
    {
      waitTimes[i] = leaveTimes[i-1] - arrivalTimes[i]
    }
    serviceTimes[i] = singleTime(serviceRate)
    leaveTimes[i] = waitTimes[i] + serviceTimes[i] + arrivalTimes[i]
    previousLeaveTime = leaveTimes[i]
    i = i + 1
  }
  waitTimesTable = table(arrivalTimes,waitTimes,serviceTimes,leaveTimes)
  View(waitTimesTable)
}

Answer 1

你能用return(data.frame(arrivalTimes, waitTimes, serviceTimes, leaveTimes)替换View(waitTimesTable)吗？我不确定你对表格的外观有多关心。