如何在Netlogo中创建随机的二进制/布尔变量 [英] How to create random binary/boolean variable in Netlogo

问题描述

我想给每只乌龟分配一个随机的布尔变量，但是我没有看到一个可以模拟伯努利分布绘制的函数.

I'd like to assign a random boolean variable to each turtle, but I'm not seeing a function that would simulate a draw from a Bernoulli distribution.

这很接近，但是很尴尬:

This gets close, but it's awkward:

ifelse random-in-range 0 1 < .5 [set expensive? false]
[ set expensive? true ]

有人知道更好的方法吗?

Anyone know a better way?

推荐答案

一些选项:

• one-of [ true false ]

random 2 = 1

random-float 1 < 0.5-如果需要修改概率，以获取所需的任何伯努利分布

random-float 1 < 0.5 - If you need to modify the probability, to get any Bernoulli distribution you want

如果我在模型中处理了很多概率问题，我喜欢添加

If I deal with a lot of probabilistic stuff in a model, I like to add

to-report probability [ p ]
  report random-float 1 < p
end

作为简单的速记.

此外，请注意，ifelse在您的代码中是多余的.您可以执行set expensive? one-of [ true false ]或任何首选方法.

Also, note that the ifelse is redundant in your code. You can just do set expensive? one-of [ true false ] or whichever is your preferred method.

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