Category: code

  • Access

    After more than a year, having a website for myself still feels like an extraordinarily pleasant luxury. Only, I can no longer easily access everything. I will lose too much without additional aids. The search function is OK, but it is not easy to browse the posts I posted in early 2020, for example. I…

  • Ambitions

    In 1987 August Willemsen called a collection of his essays De Taal als Bril (or in my translation: Language as Glasses). These essays are mainly about translation and how the language you use gives direction to what you see. That means making choices and that does not happen automatically. Actually, the transition from phase 1…

  • Setting up the Python Lab

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    Here is a log for whom wants to follow how I teach myself the use of the Python ecology for calibrating my research method and results on the CIVID-19 pandemic as an adaptive complex networked system. The focus is on emulating and understanding mixed social and biological phenomena with toy worlds, fed peridically with theorems…

  • Python?

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    He started his COVID project with NetLogo as a workbench because he deals with something that can only be understood as a complex dynamic network. That may be the case, but to be able to emulate something like that meaningfully, you need to know a lot about it. And pictures of simple timelines are a…

  • Additional Roles to Model

    Here Mr. Node gives a preliminary inventory of what he wants to use as modeling vocabulary. Individuals Citizens are essential inhabitants of toy worlds. But there’s more. Citizens Leaders Professionals Laborers Individuals Directors and executives tailor their behaviors to how they expect individuals to respond to their actions, proposals and decisions. What they especially respect…

  • Roles for Toy-World actors on Their Ways to the “Natural Condition”

    Jurisdictions PRC USA UK F NL BR Jurisdictions The problem of saving a certain state of a toy world and starting over from there in a new run has been solved by NetLogo itself. It has appropriate functions available. But having rural and urban agents and their infrastructures is not enough for showing the existence…

  • Continuing Play from a System State

    Fig. 1 Shows the result of an initial setup of a toy world. It is based on choices and assumptions: geographically ordered patches of land over which pawns (representing actors) are scattered in a way that creates “urban” and “rural” traffic infrastructures. The underlying idea is that from this base layer for agents and their…

  • Playing with Worlds

    If we must play with toy worlds to see if we can mimic the “natural condition” of Hobbes, it is good to see whether our ambitions run into obstacles, Mr. Sum thought. I discuss how I proceeded. I started by choosing a geographic area that is composed of a number of (for the time being…

  • Codes on July 24, 2020

    Here follows a list with source files and data as used elsewhere. For running with NetLogo the “_.txt” extension must be removed so the extensions become “.netlogo” (the programs) or “.nls” (the data). The programs and the data must to be run from the same directory.

  • A world filled with jurisdictions

    Anyone who wants to create a toy world that can be used to simulate how regulations work and are developed internationally needs at least a sort of sandbox in which geo-political structures can be sketched, and with that the infrastructure channels that can be used in cross-border trade. So areas have to be demarcated, boundaries…