NetLogo：如何找到每个补丁的 mean/sum 海龟数量？

Question

我想计算每个特定颜色斑块的平均（或 min/max）海龟数量。我想我必须使用 show max-one-of patches with [pcolor = red] [count turtles-here] 之类的东西，但如果我使用它，结果会是 p.ex。 patch 0 1. 但是，我想知道这个 patch 上海龟的数量，而不使用 inspect patch 0 1。当我运行 ask patches with [pcolor = red] [sum turtles-here] 我有一个错误 expected comand.

感谢您的每一个建议！

to setup
  clear-all
  crt 1000 [ setxy random-xcor random-ycor ] ; randomly distribute turtles
  setup-patches
  show max-one-of patches with [pcolor = red] [count turtles-here] ; show patch with max number of turtles here
  reset-ticks
end

to setup-patches
  ask patches [set pcolor green]
  ask n-of (count patches / 2) patches [set pcolor red]  ; turn half of patches red
  ; ask patches with [pcolor = red] [sum turtles-here] ; - how to run this?
end

; how to count max number of turtles per red patch?

Answer 1

这实际上比看起来更棘手。 turtles-here 原语在调用者的补丁上创建海龟代理集，以下代码将运行遍历所有红色补丁，然后创建海龟计数列表。你可以通过在它前面放一个打印语句来自己看到它，你会得到一个数字列表。

  [count turtles-here] of patches with [pcolor = red]

然后直接取该列表的平均值（或类似地取最大值或最小值）。

  mean [count turtles-here] of patches with [pcolor = red]

NetLogo：如何找到每个补丁的 mean/sum 海龟数量？

NetLogo: how to find the mean/sum number of turtles per patch?

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