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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: csv:from-row
CSV Extension Dictionary
  • No items found

csv:from-row

csv:from-row netlogostring csv:from-row netlogostring delimiter

Parses the given string as though it were a row from a CSV file and returns it as a list of values. For example:

observer> show csv:from-row "one,two,three"
observer: ["one" "two" "three"]

Quotes can be used when items contain commas:

observer> show csv:from-row "there's,a,comma,\"in,here\""
observer: ["there's" "a" "comma" "in,here"]

You can put two quotes in a row to put an actual quote in an entry. If the entry is not quoted, you can just use one quote:

observer> foreach (csv:from-row "he said \"hi there\",\"afterwards, she said \"\"hello\"\"\"") print
he said "hi there"
afterwards, she said "hello"

Number-like-entries will be parsed as numbers:

observer> show csv:from-row "1,-2.5,1e3"
observer: [1 -2.5 1000]

true and false with any capitalization will be parsed as booleans:

observer> show csv:from-row "true,TRUE,False,falsE"
observer: [true true false false]

To use a different delimiter, you can specify a second, optional argument. Only single character delimiters are supported:

observer> show (csv:from-row "1;2;3" ";")
observer: [1 2 3]

Different types of values can be mixed freely:

observer> show csv:from-row "one,2,true"
observer: ["one" 2 true]

Take me to the full CSV Extension Dictionary.

CSV Extension Dictionary: from-file

Documentation for the from-file primitive.

CSV Extension Dictionary: from-string

Documentation for the from-string 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 .