NETLOGO：仅向变量满足条件的海龟发出命令 - 在 "foreach" 之后

Question

用户，

我正在尝试为具有各种变量的海龟发出命令。我的代理人打电话给消费者。每个 "consumers" 都有不同的需求，用它的颜色来表示（我使用 14 种颜色）。当特定颜色的消费者数量达到 > 10 时，我希望他们将颜色更改为白色。我使用下面的代码，导致所有消费者的颜色都变成了白色。虽然我只需要满足条件的"consumers"就可以变成白色。

to cocreate-value
  let a count consumers with [ color = blue] 
  let b count consumers with [ color = gray] 
  let c count consumers with [ color = red]
  let d count consumers with [ color = orange]
  let e' count consumers with [ color = brown]
  let f count consumers with [ color = yellow]
  let g count consumers with [ color = green]
  let h count consumers with [ color = lime]
  let i count consumers with [ color = turquoise]
  let j count consumers with [ color = cyan]
  let k count consumers with [ color = sky]
  let l count consumers with [ color = violet]
  let m count consumers with [ color = magenta]
  let n count consumers with [ color = pink]

  ask consumers [set type-of-need ( list a b c d e' f g h i j k l m n ) ] 
  foreach type-of-need [
    if  ? > 10  [
        let z consumers with [ ? > 10] 
        ask z [ set color white ]
        ask consumers with [color = white] [set need? false]
   ]]
   end

有人可以告诉我解决方案吗？

谢谢

Answer 1

你的问题是你的列表是由数字组成的（每种类型消费者的数量）而不是需求类型本身。您可以在创建后通过执行 print type-of-need 来查看。假设它看起来像 [5 12 4 ...]。然后你遍历这个数字列表，最终得到一个大于 10 的数字。在这个例子中，你现在有 ? = 12。那么创建agentset z的条件对所有消费者都成立。

以下代码未经测试，但您需要列出类型而不是计数。尝试这样的事情：

to cocreate-value
  let a count consumers with [ color = blue] 
  let b count consumers with [ color = gray] 

  ask consumers [set type-of-need ( list blue gray ) ] 
  foreach type-of-need [
    if  count consumers with [ color = ? ] > 10  [
        let z consumers with [ color = ? ] 
        ask z [ set color white ]
        ask consumers with [color = white] [set need? false]
   ]]
   end

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