Best way to preserve one value past "clear-all"?

[wade.s...@gmail.com]

I want to clear everything between runs EXCEPT one value that I want to persist.

What's a good way to do that?

I've tried

(a) write it to a text file and read it back in each time

       BUT ... that won't work for Netlogo Web.

(b) load up some extension like R or PY,  write the value there,

     and read it back in since "clear-all" doesn't clear extension values.

(c) ?? Other ideas?

Am I missing something cleaner? Thank you!

Wade

[jeremy...@northwestern.edu]

Hey Wade,

From the docs for `clear-all`:  http://ccl.northwestern.edu/netlogo/docs/dictionary.html#clear-all

>  Combines the effects of clear-globals, clear-ticks, clear-turtles, clear-patches, clear-drawing, clear-all-plots, and clear-output.

So if you want to keep one value you can add a global variable to store it in, then make a `my-clear-all` procedure that omits the `clear-globals` call but clears the other global values you have.  

Like so:

```

globals [ retain-me x y z ]

to my-clear-all 

  ; manually clear the globals we want reset, leave `retain-me` alone.

  set x 0

  set y 0

  set z 0

  clear-ticks

  clear-turtles

  clear-patches

  clear-drawing

  clear-all-plots

  clear-output

end

```

I hope that helps.

-Jeremy

[Jim Lyons]

On Oct 13, 2021, at 8:41 AM, wade.s...@gmail.com <wade.s...@gmail.com> wrote:

I want to clear everything between runs EXCEPT one value that I want to persist.

What's a good way to do that?

A local variable will persist after a clear-all:

to test
 let temp 5
 clear-all
 show temp  ;; shows value 5
end

HTH,
Jim

[wade.s...@gmail.com]

Jeremy and Jim, thank you!   I think Jim's solution is what I was looking for.

I never realized that clear-all DIDN'T clear local variables!

Which is sort of cool, in that 'local' variables are in some sense MORE global than 'global' variables!

Wade

[Michael Tamillow]

That is interesting! They certainly are local to a namespace that is isolated from the clear-all command.

Sent from my iPhone

On Oct 13, 2021, at 10:57 AM, wade.s...@gmail.com <wade.s...@gmail.com> wrote:



--
You received this message because you are subscribed to the Google Groups "netlogo-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to netlogo-user...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/netlogo-users/28180f1e-1667-4225-ab71-26e3d344a903n%40googlegroups.com.

[Wade Schuette]

I ddin't know about local variables.  I do know that to persist across runs of Behavior Space past Setup and clear-all,

I set the variable value in an interface slider.   That persists.

Wade

On Fri, Apr 7, 2023 at 1:56 PM lei...@natur.cuni.cz <Wannes...@hotmail.be> wrote:

Late to the party, my own solution to the problem was creating an input box on my interface, wherein I would store a list of all my variables as a list that was turned into a string.
After clearing everything, I would reassign the values to the variables.

This works because clear-all doesn't touch any interface variables.

to safe-box-in
 
  set safe-box    (word
    (list    
      max-seasonality
      max-survival-difference
      survival-mid-point
      max-fecundity-difference
      fecundity-steepness
      fecundity-mid-point
     
      (word "\"" set-territory-quality "\"")
      alpha-value
      beta-value
      exp-mean  
    )
  )
 
end

to safe-box-out
 
  let the-list runresult safe-box
 
  set max-seasonality item 0 the-list
  set max-survival-difference item 1 the-list
  set survival-steepness item 2 the-list
  set survival-mid-point item 3 the-list
  set max-fecundity-difference item 4 the-list
  set fecundity-steepness item 5 the-list
  set fecundity-mid-point item 6 the-list
 
  set set-territory-quality item 7 the-list
  set alpha-value item 8 the-list
  set beta-value item 9 the-list
  set exp-mean item 10 the-list
 
  set safe-box ""
 
end

Op woensdag 13 oktober 2021 om 20:19:59 UTC+2 schreef mikaelta...@gmail.com:

To view this discussion on the web visit https://groups.google.com/d/msgid/netlogo-users/0d7d24e2-7b9c-4c1f-84e7-04f7fcea9e2cn%40googlegroups.com.

[Wannes...@hotmail.be]

Hi Wade,

My comment was not so much about using sliders, but rather about using a single input box on the interface in which to store a whole slew of different variables (by setting them in the code), allowing for the persistance of variables across runs without cluttering up your entire interface.

Best,

Wannes

Op vrijdag 7 april 2023 om 21:03:49 UTC+2 schreef wade.s...@gmail.com:

[Stephen Guerin]

The "Store" extension is designed for net logo web and net logo os persistence:

 https://netlogoweb.org/whats-new#may24th2019-v2.6.0

Store

Store long-lived string data from the model in the user's browser, in a way that persists between recompiles and reloads, all without without user interaction (unlike send-to:file saving).

--

You received this message because you are subscribed to the Google Groups "netlogo-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to netlogo-user...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/netlogo-users/6af06790-bfd1-4526-aee3-9e5a1cbe7716n%40googlegroups.com.

[Wade Schuette]

Thanks Stephen!  That's perfect!

Wade