Question

在我的研究中，我正在尝试建立一个代表真实工作环境的模拟，旨在创造有关如何让人们在工作中感觉更好的知识。特别是，我正在建模一个人们为多个团队工作的场景（你一次只处理一个项目吗？很多人不......）。为此，我正在使用NetLogo。

我遇到了自定义链接龟集的特定代理的ASK问题。关键是有时它会报告一个错误，说“ASK预期输入是一个代理或代理集，但却得到NOBODY”，但它不应该在没有代理存在的情况下到达那个“ASK”！我做错了什么？

该功能如下：

to TeamRecruiting
  ;; I ask non-complete teams to...
  ask teams with [ teamsize != (count membership-neighbors) ]
  [
    ;; ... count how many individuals they have...
    let actualteammembers count membership-neighbors
    ;; ... to save locally how many individuals they can share...
    let teamoverlap overlap
    ;; ... their target size...
    let neededsize teamsize
    ;; ... and their identity.
    let teamwho who
    ;; then I ask those individuals that have not yet more things than they can handle...
    ask individuals with [ indMTM != (count membership-neighbors) ]
      [
      ;; ... to save locally who they are...
      let indwho who
      let createdalink 0
      ;; ... then if some conditions have been met ...
      if(some conditions)
        [
        ;; I create a link (of my specific type) with the team...
        create-membership-with team teamwho
        ;; I do the following because more than one individual could join the team teamwho in the same run of the function
        ask team teamwho [ set actualteammembers (actualteammembers + 1) ]
        set createdalink 1
        ]
      ;; if the association occurred, ...
      if(createdalink = 1)
        [
        ;; we ask all other teams to evaluate if the new connection violates their maximum overlap constraint between the team I am considering from the beginning of the function, and all other teams, in other words...
        ask teams with [ who != teamwho ]
        [
        let numpaths 0
        let team2who who
        ;; I count how many individuals say that they are shared by the two teams
        ask individuals
          [
          if((membership-neighbor? team teamwho) and (membership-neighbor? team team2who)) [ set numpaths (numpaths + 1) ]
          ]
        ;; ... and if the number of paths is more than the maximum allowed overlap...
        if(numpaths > teamoverlap)
          [
          ;; I take the connection away...
          ask membership teamwho indwho [ die ]
          ;; and I reduce the actual number of team members
          set actualteammembers (actualteammembers - 1)
          ]
        ]
      ]
    ]
  ]
end

感谢您的宝贵帮助！

Answer 1

我认为这个问题可能与您提到要求死亡的链接有关。 membership是无向链接，因此代理为end1且end2取决于代理的创建顺序。编号较低的编号为end1，另一编号为end2。因此，如果团队代理是在单个代理之后创建的，那么该特定链接将是membership indwho teamwho。一般来说，使用谁的数字是不好的做法，但如果你使用团队和个人代理本身而不是他们的数字，就会出现同样的问题。

在使用无向链接方面有更多经验的人，如果你不知道哪个代理人年龄较大，可能会更好地建议如何轻松引用无向链接，但是

ifelse (indwho < teamwho) [
ask membership indwho teamwho [ die ]
]
[
ask membership teamwho indwho [ die ]
]

应该有效。使用有向链接可以避免此问题，因为创建者代理始终是end1而目标代理是end2。因此，如果会员链接始终由个人创建，那么您将始终知道该个人位于end1。

希望这会有所帮助。查尔斯

ASK预期输入为代理或代理集，但取而代之的是NOBODY

1 个答案: