random number generation

[MLS]

Is there a way to control the random number seed when using the nw extension (or any extension)?  Thanks.

[Seth Tisue]

Are you developing your own extension? (I"m asking because this is the netlogo-devel group; perhaps you're looking for the netlogo-users group?)

[jeremy...@northwestern.edu]

As Seth said, this is a forum for creating new NetLogo extensions for NetLogo, not for answering questions about how to use them.  It sounds like you're using the NW extension in your model, so the netlogo-users group would be a better place for your question:  https://groups.google.com/g/netlogo-users 

But to answer what you asked, the NW extension uses a random number generator provided by NetLogo, so setting the NetLogo seed with `random-seed` should also affect NW: https://ccl.northwestern.edu/netlogo/docs/dictionary.html#random-seed.  

It is best practice for extensions to do it this way, to ensure reproducibility of model runs and to easily allow model authors to control the seed.

-Jeremy