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NetLogo 3.0.2 User Manual Table of Contents What is NetLogo?..............................................................................................................................1 Features...................................................................................................................................1 Copyright Information.......................................................................................................................3 Third party licenses..................................................................................................................3 What's New?.......................................................................................................................................7 Version 3.0.2 (November 23, 2005).........................................................................................7 Version 3.0 (September 2005).................................................................................................7 Version 2.1 (December 2004)................................................................................................11 Version 2.0.2 (August 2004)..................................................................................................11 Version 2.0 (December 2003)................................................................................................11 Version 1.3 (June 2003).........................................................................................................12 Version 1.2 (March 2003)......................................................................................................12 Version 1.1 (July 2002)..........................................................................................................12 Version 1.0 (April 2002).........................................................................................................12 System Requirements.....................................................................................................................13 System Requirements: Application........................................................................................13 Windows...........................................................................................................................13 Mac OS X.........................................................................................................................13 Mac OS 8 and 9...............................................................................................................13 Other platforms................................................................................................................13 System Requirements: Saved Applets..................................................................................14 System Requirements: 3D View............................................................................................14 Operating Systems...........................................................................................................14 Graphics Cards................................................................................................................14 Fullscreen mode...............................................................................................................15 Library Conflicts...............................................................................................................15 Removing an old JOGL....................................................................................................15 Known Issues...................................................................................................................................17 Known bugs (all systems)......................................................................................................17 Windows−only bugs...............................................................................................................17 Macintosh−only bugs.............................................................................................................17 Linux/UNIX−only bugs...........................................................................................................18 Known issues with computer HubNet....................................................................................18 Unimplemented StarLogoT primitives....................................................................................18 Contacting Us..................................................................................................................................19 Web Site................................................................................................................................19 Feedback, Questions, Etc.....................................................................................................19 Reporting Bugs......................................................................................................................19 Sample Model: Party.......................................................................................................................21 At a Party...............................................................................................................................21 Challenge...............................................................................................................................23 Thinking With Models.............................................................................................................24 i
Page 1: NetLogo 3.0.2 User Manual
Page 5 and 6: NetLogo 3.0.2 User Manual Table of
Page 17 and 18: What is NetLogo? NetLogo is a progr
Page 19 and 20: Copyright Information Copyright 199
Page 21 and 22: larger work; and under patents now
Page 23 and 24: What's New? Feedback from users is
Page 25 and 26: NetLogo 3.0.2 User Manual with expo
Page 27 and 28: Version 2.1 (December 2004) • muc
Page 29 and 30: System Requirements NetLogo is desi
Page 31 and 32: If you use the 3D view with a graph
Page 33 and 34: Known Issues If NetLogo malfunction
Page 35 and 36: Contacting Us Feedback from users i
Page 37 and 38: Sample Model: Party This activity i
Page 39 and 40: There are lots of possible answers
Page 41 and 42: Tutorial #1: Models If you read the
Page 43 and 44: Adjusting Settings: Sliders and Swi
Page 45 and 46: (Note: in addition to sliders and s
Page 47 and 48: • Press the "Edit..." button in t
Page 49 and 50: In these diagrams, Screen Edge X is
Page 51 and 52: Tutorial #2: Commands In Tutorial #
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Was the result what you expected? N
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NetLogo 3.0.2 User Manual Think abo
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• Press "setup" to get the red ca
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If you try to have the observer ask
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Tutorial #3: Procedures In Tutorial
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NetLogo 3.0.2 User Manual fd (rando
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Why couldn't we have just written t
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;diffuse elevation 1 Semicolons are
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Let's try a simple algorithm first.
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you'll end up with only a handful o
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Then, inside of setup−turtles, in
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] end if (elevation > (highest −
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Interface Guide This section of the
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Opens the Color Swatches. See the C
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The Views the white background of t
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the approriate item in the turtle s
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Command Center The Command Center a
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You may enter either a word or phra
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Lines that come after blank lines a
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Programming Guide The following mat
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• random and turtles are primitiv
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those brackets. to swap−colors [t
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a lighter shade of orange. Code Exa
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;; patches on right side of screen
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end Code Example: Breeds and Shapes
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At present, this capability is very
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For example, to change the third it
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incorrect answers. Floating point n
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You will always get the numbers 95,
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to go ... plot count turtles end No
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Many of the Sample Models in the Mo
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The reading primitives include file
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perspective of the obeserver by usi
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Shapes Editor Guide The Shapes Edit
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Tools In the upper left corner of t
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BehaviorSpace Guide This guide has
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Or, to give it only the values of 1
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A dialog will appear, titled "Runni
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−−experiment experiment3 If the
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HubNet Guide This section of the Us
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HubNet Control Center The HubNet Co
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not always the entire IP address of
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HubNet Authoring Guide This explain
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] end hubnet−fetch−message ifel
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Computer HubNet Information The fol
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If there is no View in the clients
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Extensions Guide NetLogo allows use
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1. Write primitives A command perfo
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$ javac −classpath NetLogo.jar In
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Controlling Guide NetLogo can be in
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} } } In order to compile and run t
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GoGo Extension What is the GoGo Boa
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For examples that use the GoGo exte
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Examples: ;; talk to all output−p
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Sound Extension The NetLogo Sound E
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stop−music stop−music Stops all
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FAQ (Frequently Asked Questions) Fe
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General Why is it called NetLogo? T
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eceive the exact same sequence of r
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How do I install NetLogo on Windows
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• Windows: Edit this section of t
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Can I have more than one model open
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Still, NetLogo differs in some resp
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This might not be the meaning of "a
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Does NetLogo have associative array
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Primitives Dictionary Alphabetical:
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String primitives Operators (+, , =
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acos acos number Reports the arc co
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atan atan x y Reports the arc tange
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The order in which breeds are decla
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clear−output Clears all text from
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create−custom−turtles number [
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diffuse4 chemical 0.5 ;; each patch
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Reports the turtle heading (between
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See also wait. exp exp number Repor
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If the wrapped distance (around the
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is defaulted to the model's directo
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file−type file−type value Print
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With multiple lists, runs commands
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hidden? hidden? This is a built−i
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See the HubNet Authoring Guide for
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For a string, this sends value from
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This can be used when a conditional
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in−radius in−radius−nowrap ag
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L label label This is a built−in
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ln number Reports the natural logar
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See also with−max mean mean list
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mouse−down? mouse−down? Reports
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myself "self" and "myself" are very
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Note that display and no−display
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;; patches turn red except in lower
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patch−here patch−here patch−h
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pen−mode This is a built−in tur
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position position item list positio
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andom−float random−float number
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andom−one−of random−one−of
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to−report eval−polynomial [coef
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eset−perspective rp reset−persp
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show round 4.5 => 5 show round −4
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; (semicolon) ; comments After a se
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Note that specifying a default shap
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ask turtles [ set shape "wolf" ] ;;
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sprout sprout− sprout number [ co
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subtract−headings subtract−head
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Note: asking for the heading from a
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turtles−on BREED−on turtles−o
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Reports the item in list−of−cho
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variance variance list Reports the
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with−max agentset with−max [rep
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xcor This is a built−in turtle va
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