如何对sum的数据帧进行采样，其中sum与列总和部分匹配(How to sample dataframe where sum matches partially with column sum)

 我有以下数据帧： 
 
  id     sum
  123    12
  234    12
  345    50
  124    23
  111    20
  116    20
 
 现在我想要将sum与100或接近100匹配的数据帧 
 
 期望的数据帧将是 
 
  id     sum
  123    12
  234    12
  345    50
  124    23
 
 总和是97，接近100 
 
 如何在不使用for循环的情况下在R中执行此操作？ 

I have a following dataframe:
 
  id     sum
  123    12
  234    12
  345    50
  124    23
  111    20
  116    20
 
Now I want to subset dataframe where sum matches 100 or near to 100 
 
desired dataframe would be
 
  id     sum
  123    12
  234    12
  345    50
  124    23
 
Sum is 97 which is near to 100
 
How can I do it in R without using for loop?

原文：https://stackoverflow.com/questions/49233522