在NetLogo中，我可以要求座席沿着中央补丁沿着梯度消亡吗? [英] In NetLogo can I ask agents to die along a gradient from a central patch?

问题描述

在我的模型中，我在整个环境中都有随机发芽的药剂.我想要这些试剂的密度梯度.

In my model I have agents sprout at random throughout the environment. I'd like to to have a density gradient of these agents.

是否有比在不同半径上运行类似方法更整洁的方法?:

Is there a neater way to do it than running something like this for different radii?:

ask patch 0 0 [ask n-of 20 turtles in-radius 20 [die]]

谢谢

推荐答案

您可以按照以下方式进行操作:

You could do something along those lines:

to setup
  clear-all
  let max-distance max [ distancexy 0 0 ] of patches
  ask patches [
    if random-float 1.0 > (distancexy 0 0 / max-distance) [
      sprout 1
    ]
  ]
end

许多变体都是可能的.关键是结合使用random-float和distancexy 0 0来获得所需的密度.

Many variants are possible. The key is to use a combination of random-float and distancexy 0 0 to get the density you want.

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