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Home
Learn NetLogo
What is NetLogo? Tutorial #0 Sample Model Tutorial #1 Models Tutorial #2 Commands Tutorial #3 Procedures
Documentation
NetLogo Dictionary Interface Guide Interface Tab Guide Info Tab Guide Code Tab Guide Programming Guide Transition Guide Preferences Guide Version History
Advanced Tools
Extension Manager Shapes Editor BehaviorSpace System Dynamics HubNet HubNet Authoring Logging Controlling Mathematica Link NetLogo 3D Cluster Computing (HPC)
Extensions
Extensions Guide Arduino Array Bitmap CSV GIS GoGo LevelSpace Matrix Networks Palette Profiler Python Resource Rnd Sound Simple R Table Time Vid View2.5D
FAQ
primitive: ask
NetLogo Dictionary
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ask 1.0

ask agentset commands

ask agent commands

The specified agent or agentset runs the given commands. Because agentset members are always read in a random order, when ask is used with an agentset each agent will take its turn in a random order. See Agentsetsfor more information.

ask turtles [ fd 1 ]
;; all turtles move forward one step
ask patches [ set pcolor red ]
;; all patches turn red
ask turtle 4 [ rt 90 ]
;; only the turtle with id 4 turns right

Note: only the observer can ask all turtles or all patches. This prevents you from inadvertently having all turtles ask all turtles or all patches ask all patches, which is a common mistake to make if you’re not careful about which agents will run the code you are writing.

Note: Only the agents that are in the agentset at the time the ask begins run the commands.

Take me to the full NetLogo Dictionary.

NetLogo Dictionary: asin

Documentation for the asin primitive.

NetLogo Dictionary: ask-concurrent

Documentation for the ask-concurrent primitive.


NetLogo is a programmable modeling environment for simulating natural and social phenomena. It was authored by Uri Wilensky in 1999 and has been in continuous development ever since at the Center for Connected Learning and Computer-Based Modeling.

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Copyright © 1999-2025 Uri Wilensky and the Center for Connected Learning and Computer-Based Modeling at Northwestern University . All rights reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License , or (at your option) any later version.

Commercial licenses are also available. To inquire about commercial licenses, please contact Uri Wilensky at netlogo-commercial-admin@ccl.northwestern.edu .

For more information, visit the NetLogo website .