On this screen, you will find useful ‘meta’ information about the model. Using ‘Halt’ may interrupt the model in the middle of an action, which could create an error. You can also stop a model with the ‘Halt’ item on the Tools menu, but you should only do this if the model is stuck for some reason. Using a once button like this lets you watch the progress of the model more closely. Many models also have a once button called “go once” or “step once” which is like “go” except that it advances the model by one tick (time step) instead of over and over. There are two different types of buttons: ‘once’ and ‘forever’.īuttons without arrows, like the ‘setup’ button, perform a task once and then pop back up when the task is completed.īuttons with arrows, like the ‘go’ button, will run until the user manually stops the task by clicking the same button again. To initialize the model with its default setting, press the ‘setup’ button. When you first open the model, the Monitor is empty. The ‘+ Add’ button along the top toolbar allows one to add additional features to the interface. Monitors and plots are beige they display data. Sliders and switches are green they alter model settings. Buttons are blue they set up, start, and stop the model. These interface elements allow you to interact with the model. The Interface tab will fill up with lots of buttons, switches, sliders and monitors. Click on the model called “Wolf Sheep Predation”.Choose “Models Library” from the File menu.The NetLogo model library has many examples to explore. the ‘World’, used for real-time model visualization It has seveal parts: IDE ComponentĬontrol, run, and visualize model (current tab)ĭescription of model purpose, function, and features (middle tab) The window you see is called the NetLogo integrated development environment (IDE). Start the NetLogo application to begin a basic tour. Procedures to alter and extend existing models.Modifying model parameters with the UI to run experiments.Using the NetLogo user interface (UI) to run models.Note: This lesson is in alpha status! It may have issues that have not been addressed.
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