distance between an individual patch and a list of agents

[M_ Ahmed Rusho]

Hi, I am new to Netlogo and have pretty basic programming skills. In developing my model I am stuck at the following part:

I have assigned the patches a variable called nearby-turtles which stores the turtles nearby as list

ex: 

patches-own [nearby-turtles]

ask patches [set nearby-turtles []]

to setup

create-turtles 10 [

     ask patches at-points nearby ;;;where nearby are set of certain co-ordinates

         [

             set nearby-turtles fput myself nearby-turtles

        ]

end

;;; this gives me a list of agents which are near to the particular patch, ex: [turtle 0 turtle 4 turtle 6]

;;;now I want to assign another variable to the patch which will create a list of distance of  each of these nearby turtles from the patch. For example if the nearby-turtles are [turtle 0 turtle 4 turtle 6] then the new variable for the patch should be like [3.44 2.67 2.99] where 3.44 is the distance of turtle 0 from the patch etc. Please help.

 

[Klaus G. Troitzsch]

.. perhaps it would be better to define nearby-turtles as an agentset instead of as a list, then the distances can be calculated as

set nearby-turtles-distances [ distance myself ] nearby-turtles

Good luck

Klaus

Prof. (i.R.) Dr. Klaus G. Troitzsch
Schillerstraße 26
79713 Bad Säckingen
oder
Aeussere Dorfstrasse 39
3718 Kandersteg, Schweiz
Telefon +49 7761 9982074/5 bzw. +41 33 6750166
klaus.g....@bluewin.ch
https://www.uni-koblenz-landau.de/en/campus-koblenz/fb4/iwvi/former-rg/rgtroitzsch/klaus-troitzsch
https://klausgtroitzsch.academia.edu/

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[wade.s...@gmail.com]

Turns out  I posted a solution to this problem and managing the twin lists in the modeling commons

http://modelingcommons.org/browse/one_model/6645#model_tabs_browse_nlw

Here's a snippet of that code:

 ;; get a list of my neighbors
    let nearbylist [self] of neighbors

 ;; create a list of indices
    let listplace n-values (  length nearbylist) [ i -> i]

    ;; create a list of distance of each neighbor from the forest centroid
    let dlist [];
    foreach nearbylist [ x -> ask (patch xc yc) [ set dlist lput distance x dlist]  ]
       

Wade