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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 NetLogoLab 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: random-seed
NetLogo Dictionary
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random-seed 1.0

random-seed number

Sets the seed of the pseudo-random number generator to the integer part of number. The seed must be in the range -2147483648 to 2147483647; note that this is smaller than the full range of integers supported by NetLogo (-9007199254740992 to 9007199254740992).

See the Random Numberssection of the Programming Guide for more details.

random-seed 47822
show random 100
=> 50
show random 100
=> 35
random-seed 47822
show random 100
=> 50
show random 100
=> 35

See also the new-seed reporter that generates proper random seed values.

Take me to the full NetLogo Dictionary.

NetLogo Dictionary: random-reporters

Documentation for the random-reporters primitive.

NetLogo 3D Dictionary: random-zcor

Documentation for the random-zcor 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.

Related Links
  • NetLogo Home
  • CCL Home
  • NetLogo Web
  • NetTango Web
  • NetLogo 3D
  • BehaviorSearch
  • Contact Us

Copyright © 1999-2026 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 [email protected] .

For more information, visit the NetLogo website .