netlogo

问题 I have a *.shp file that I've upload and i'm using as part of my model (calculating shortest paths). This is quite a big shape file with thousands of road links and intersections and bridges represented by nodes. I was hoping to speed up the running of behavior space by not loading this map every time, and so created a separate procedure for loading the map and defining link weights etc. In this procedure I have clear-all - reset ticks so everything is effectively wiped if i load a new map.

问题 I want to start NetLogo from R and load a model. When I start like so ( gui = TRUE ): NLStart(nl.path = "C:/Program Files/NetLogo 6.1.0/app", nl.jarname = "netlogo-6.1.0.jar", gui = TRUE) and load the model I get model:java.lang.reflect.InvocationTargetException When I start like so ( gui = FALSE ): NLStart(nl.path = "C:/Program Files/NetLogo 6.1.0/app", nl.jarname = "netlogo-6.1.0.jar", gui = FALSE) and load the model I get Java-Object{java.lang.NoSuchMethodError: org.nlogo.workspace

问题 I am calculating cumulative turtle mortality in netlogo as a function of distance moved by turtles (100 of them) from the origin ( start-patch ) in the netlogo interface world. In the code below the ' Pass-Away ' procedure is linked to a global interface switch called "space-death" which when switched on yields said distance-based mortality undertaken by the procedure called " Pass-Away-Space ", otherwise maintains regular per-time-step ( tick ) mortality undertaken by the procedure called "

问题 I've been using individual lists of data to update variables in my ABM. Unfortunately due to the size of data I am using now, it is becoming time consuming to build the lists and then tables. The data for these tables changes frequently, so it is not just a one time thing. I am hoping to gain some ideas for a method to create a table that can be read directly from an excel spreadsheet, without going through the time to build the table explicitly by inputing the individual lists? My table

问题 After a short while I get a typical error message when running my netlogo model: DISTANCE expected input to be an agent but got NOBODY instead. error while human 18 running DISTANCE So far, I was not able to fix the mistake. Netlogo shows me the location in the source code where the mistake occurs: let dist-nearest-resource distance nearest-resource I believe to know that the message means that there are no green patches available to go to. I do know what else to code other than to say that

问题 I am currently trying to increase the value of an attribute belonging to every agent of the same breed. Every frame the attribute should increase by a pre-determined value, in this case 1. ask breed [if attribute < max-value [set attribute attribute + 1]] I have two agents of this breed in the model and they both change the attribute at the same pace i.e tick0: 100 (100 is the starting value) tick1: 100 tick2: 101 tick3: 103 tick4: 106 tick5: 110 tick6: 121 tick7: 128 There seems to be a

问题 so im making a netlogo project using GIS shape files. i have a big point layer that represent places in a city like restaurants and gas stations. i need my turtles to go in the direction of the points for example: turtle pops at the housing area go to a random restaurant, heads to the nearst gas station and comes back home. i found "foreach (gis:property-value ?)" that runs on the table and made the points scale by color and objectID to ensure it works. so now i can run on the column and the

问题 so im making a netlogo project using GIS shape files. i have a big point layer that represent places in a city like restaurants and gas stations. i need my turtles to go in the direction of the points for example: turtle pops at the housing area go to a random restaurant, heads to the nearst gas station and comes back home. i found "foreach (gis:property-value ?)" that runs on the table and made the points scale by color and objectID to ensure it works. so now i can run on the column and the

问题 We have stored a lot of data as attributes of links in our NetLogo model. When I use the Behavior Space to design experiments and to direct data collection, I specify the "[attribute] of link" to be extracted. However, in the csv file I cannot see the id of the link, which is a essential to understand the data. How can I collect the ids of links in my results? From what I understand there is no primitive to enable this command. 回答1: Whenever you want to extract information from individual

问题 We have stored a lot of data as attributes of links in our NetLogo model. When I use the Behavior Space to design experiments and to direct data collection, I specify the "[attribute] of link" to be extracted. However, in the csv file I cannot see the id of the link, which is a essential to understand the data. How can I collect the ids of links in my results? From what I understand there is no primitive to enable this command. 回答1: Whenever you want to extract information from individual