Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Spencer Graves]

On 2017-06-28 11:36 AM, Suzen, Mehmet wrote:

Hello Chris,

I was implying you are capable enough to implement it, while you have
already identify a research paper. If there is no package out there,
uploading to CRAN would help future user too. I am more than happy to
help if you want to implement from scratch.



  sos::findFn("nash equilibrium") identified 4 packages: antitrust, 
GNE, GPGame, and nopp.  I found GNE mentioned earlier in this thread but 
not the other three.  Similar searches for "nash equilibrium networ" and 
"nash equilibrium networks" returned no matches.



  By the way, one of the sessions at useR!2017 in Brussels next 
week will discuss "Navigating the R package universe".  This will 
provide a brief overview of tools currently available, followed by a 
general discussion of what people would want in tools to make it easier 
to find and use what you want in contributed packages, now well over 
10,000.  The planned discussion will briefly cover the "sos" package, 
"RDocumentation.org", METACRAN (www.r-pkg.org), "Task views", and other 
tools.



  We're hoping that this session will facilitate the development of 
one or more teams to collaborate on the following:



* Creating common interfaces for different approaches to 
essentially the same problem, like "optimx".



* Improving "Task views".


* Improving search capabilities.


  If you can make it to useR!2017, we hope to see you in this 
session, Wed. July 5, from 17:00 - 18:30 in the main meeting room. If 
you might like to help with this but can't make Brussels, please stay 
tuned for further announcements or contact me after the conference for 
further information.



  Spencer Graves


p.s.  Please excuse if I highjacked this thread to promote this session, 
but I didn't see any mention of the sos package or RDocumentation.org, 
so it seemed appropriate.



Best,
Mehmet

On 27 June 2017 at 17:45, Chris Buddenhagen  wrote:

Does anyone know of some code, and examples that implement game theory/Nash
equilibrium hypothesis testing using existing packages like igraph/statnet
or similar?

Perhaps along the lines of this article:

Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local Nash
Equilibrium in Social Networks, *4*, 6224.

Best,
Chris Buddenhagen
cbuddenha...@gmail.com

 [[alternative HTML version deleted]]

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Suzen, Mehmet]

Hello Chris,

I was implying you are capable enough to implement it, while you have
already identify a research paper. If there is no package out there,
uploading to CRAN would help future user too. I am more than happy to
help if you want to implement from scratch.

Best,
Mehmet

On 27 June 2017 at 17:45, Chris Buddenhagen  wrote:
> Does anyone know of some code, and examples that implement game theory/Nash
> equilibrium hypothesis testing using existing packages like igraph/statnet
> or similar?
>
> Perhaps along the lines of this article:
>
> Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local Nash
> Equilibrium in Social Networks, *4*, 6224.
>
> Best,
> Chris Buddenhagen
> cbuddenha...@gmail.com
>
> [[alternative HTML version deleted]]
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Rui Barradas]

Hello,

So you misunderstood me. I didn't suggest that you should google it, 
what I did was to say that it's what I've done. And found a package. Bad 
luck if that package doesn't do what you want. Hope you find one.


Rui Barradas

Em 28-06-2017 10:53, Chris Buddenhagen escreveu:

Thanks I too wondered about the tone. The first suggestion was that I
should "google it" and the second, write my own code. I think if I did I'd
be reinventing the wheel, (and it'd be a big challenge for me). Also, I
have been searching and not found such code, despite evidence that it has
been coded (just not sure if it was in R). BTW I did write to authors of
the article I cited, but no reply.

Chris Buddenhagen
cbuddenha...@gmail.com

On Wed, Jun 28, 2017 at 5:44 AM, Boris Steipe 
wrote:


I responded to the unhelpful suggestion "Why don't you implement and uplad
the package to CRAN?" No  mention of a search engine. Is this what you are
commenting on Jeff?






On Jun 28, 2017, at 5:41 AM, Jeff Newmiller 

wrote:


In what way does reminding people that packages exist because others

just like them contributed something count as being uncivil? Terse,
perhaps, since it bypassed the obvious suggestion to use a search engine,
but not rude.

--
Sent from my phone. Please excuse my brevity.

On June 28, 2017 5:08:16 AM EDT, Boris Steipe 

wrote:

I don't think OP asked an unreasonable question at all.

Civility!





On Jun 27, 2017, at 2:00 PM, Suzen, Mehmet 

wrote:


Why don't you implement and uplad the package to CRAN?

On 27 Jun 2017 17:45, "Chris Buddenhagen" 

wrote:


Does anyone know of some code, and examples that implement game

theory/Nash

equilibrium hypothesis testing using existing packages like

igraph/statnet

or similar?

Perhaps along the lines of this article:

Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local

Nash

Equilibrium in Social Networks, *4*, 6224.

Best,
Chris Buddenhagen
cbuddenha...@gmail.com

   [[alternative HTML version deleted]]

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Spencer Graves]

On 2017-06-28 5:40 AM, Jeff Newmiller wrote:

Showing your work so that someone else can either see something you missed or 
share in the joy when a rare answer comes through is what elevates such a 
posting from spam to shared research.


A "fortune"?


  sg

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Jeff Newmiller]

There are many possible responses to the question "Is there a package to do X." 
Some that I can imagine are:

* Yes, see package Y...
* No, I am familiar with all 1 packages and there isn't...
* Silence (because no one who is paying attention is familiar with the one that 
exists)
* Use a search engine...
* You are a jerk because you did not use a search engine
* Packages exist because people like you did not find what they were looking for

My point was that response 5 would have been uncivil, but 6 was a valid 
reminder and Mehmet was just being brief, not rude.

The first does happen, but it is more common that if the question sounds 
interesting that this question triggers list members to search for themselves. 
If the OP tells us that they did this already and package Y (that appears as 
soon as we do this) is unsuitable for some specific reason, then we all nod and 
agree that the search engine wasn't up to the task and watch with the OP in 
case someone does respond with an answer. But when the OP does not do that we 
get frustrated that yet again we are being treated like a search engine by 
someone who does not do their homework, since we don't know why they regarded 
the first search result as unsuitable. 

Keep in mind that broadcasting to many uninterested parties when the pool of 
targeted individuals (in this case,  people who have the answer readily 
available) is very very small is an activity most people call "spam". Showing 
your work so that someone else can either see something you missed or share in 
the joy when a rare answer comes through is what elevates such a posting from 
spam to shared research. 
-- 
Sent from my phone. Please excuse my brevity.

On June 28, 2017 5:44:31 AM EDT, Boris Steipe  wrote:
>I responded to the unhelpful suggestion "Why don't you implement and
>uplad the package to CRAN?" No  mention of a search engine. Is this
>what you are commenting on Jeff?
>
>
>
>
>
>> On Jun 28, 2017, at 5:41 AM, Jeff Newmiller
> wrote:
>> 
>> In what way does reminding people that packages exist because others
>just like them contributed something count as being uncivil? Terse,
>perhaps, since it bypassed the obvious suggestion to use a search
>engine, but not rude.
>> -- 
>> Sent from my phone. Please excuse my brevity.
>> 
>> On June 28, 2017 5:08:16 AM EDT, Boris Steipe
> wrote:
>>> I don't think OP asked an unreasonable question at all.
>>> 
>>> Civility!
>>> 
>>> 
>>> 
>>> 
 On Jun 27, 2017, at 2:00 PM, Suzen, Mehmet 
>>> wrote:
 
 Why don't you implement and uplad the package to CRAN?
 
 On 27 Jun 2017 17:45, "Chris Buddenhagen" 
>>> wrote:
 
 Does anyone know of some code, and examples that implement game
>>> theory/Nash
 equilibrium hypothesis testing using existing packages like
>>> igraph/statnet
 or similar?
 
 Perhaps along the lines of this article:
 
 Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014).
>Local
>>> Nash
 Equilibrium in Social Networks, *4*, 6224.
 
 Best,
 Chris Buddenhagen
 cbuddenha...@gmail.com
 
   [[alternative HTML version deleted]]
 
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 PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
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[[alternative HTML version deleted]]
 
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 R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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 PLEASE do read the posting guide
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>>> 
>>> __
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>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Chris Buddenhagen]

Thanks I too wondered about the tone. The first suggestion was that I
should "google it" and the second, write my own code. I think if I did I'd
be reinventing the wheel, (and it'd be a big challenge for me). Also, I
have been searching and not found such code, despite evidence that it has
been coded (just not sure if it was in R). BTW I did write to authors of
the article I cited, but no reply.

Chris Buddenhagen
cbuddenha...@gmail.com

On Wed, Jun 28, 2017 at 5:44 AM, Boris Steipe 
wrote:

> I responded to the unhelpful suggestion "Why don't you implement and uplad
> the package to CRAN?" No  mention of a search engine. Is this what you are
> commenting on Jeff?
>
>
>
>
>
> > On Jun 28, 2017, at 5:41 AM, Jeff Newmiller 
> wrote:
> >
> > In what way does reminding people that packages exist because others
> just like them contributed something count as being uncivil? Terse,
> perhaps, since it bypassed the obvious suggestion to use a search engine,
> but not rude.
> > --
> > Sent from my phone. Please excuse my brevity.
> >
> > On June 28, 2017 5:08:16 AM EDT, Boris Steipe 
> wrote:
> >> I don't think OP asked an unreasonable question at all.
> >>
> >> Civility!
> >>
> >>
> >>
> >>
> >>> On Jun 27, 2017, at 2:00 PM, Suzen, Mehmet 
> >> wrote:
> >>>
> >>> Why don't you implement and uplad the package to CRAN?
> >>>
> >>> On 27 Jun 2017 17:45, "Chris Buddenhagen" 
> >> wrote:
> >>>
> >>> Does anyone know of some code, and examples that implement game
> >> theory/Nash
> >>> equilibrium hypothesis testing using existing packages like
> >> igraph/statnet
> >>> or similar?
> >>>
> >>> Perhaps along the lines of this article:
> >>>
> >>> Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local
> >> Nash
> >>> Equilibrium in Social Networks, *4*, 6224.
> >>>
> >>> Best,
> >>> Chris Buddenhagen
> >>> cbuddenha...@gmail.com
> >>>
> >>>   [[alternative HTML version deleted]]
> >>>
> >>> __
> >>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >>> https://stat.ethz.ch/mailman/listinfo/r-help
> >>> PLEASE do read the posting guide
> >> http://www.R-project.org/posting-guide.html
> >>> and provide commented, minimal, self-contained, reproducible code.
> >>>
> >>> [[alternative HTML version deleted]]
> >>>
> >>> __
> >>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >>> https://stat.ethz.ch/mailman/listinfo/r-help
> >>> PLEASE do read the posting guide
> >> http://www.R-project.org/posting-guide.html
> >>> and provide commented, minimal, self-contained, reproducible code.
> >>
> >> __
> >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >> https://stat.ethz.ch/mailman/listinfo/r-help
> >> PLEASE do read the posting guide
> >> http://www.R-project.org/posting-guide.html
> >> and provide commented, minimal, self-contained, reproducible code.
>
>

[[alternative HTML version deleted]]

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Boris Steipe]

I responded to the unhelpful suggestion "Why don't you implement and uplad the 
package to CRAN?" No  mention of a search engine. Is this what you are 
commenting on Jeff?





> On Jun 28, 2017, at 5:41 AM, Jeff Newmiller  wrote:
> 
> In what way does reminding people that packages exist because others just 
> like them contributed something count as being uncivil? Terse, perhaps, since 
> it bypassed the obvious suggestion to use a search engine, but not rude.
> -- 
> Sent from my phone. Please excuse my brevity.
> 
> On June 28, 2017 5:08:16 AM EDT, Boris Steipe  
> wrote:
>> I don't think OP asked an unreasonable question at all.
>> 
>> Civility!
>> 
>> 
>> 
>> 
>>> On Jun 27, 2017, at 2:00 PM, Suzen, Mehmet 
>> wrote:
>>> 
>>> Why don't you implement and uplad the package to CRAN?
>>> 
>>> On 27 Jun 2017 17:45, "Chris Buddenhagen" 
>> wrote:
>>> 
>>> Does anyone know of some code, and examples that implement game
>> theory/Nash
>>> equilibrium hypothesis testing using existing packages like
>> igraph/statnet
>>> or similar?
>>> 
>>> Perhaps along the lines of this article:
>>> 
>>> Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local
>> Nash
>>> Equilibrium in Social Networks, *4*, 6224.
>>> 
>>> Best,
>>> Chris Buddenhagen
>>> cbuddenha...@gmail.com
>>> 
>>>   [[alternative HTML version deleted]]
>>> 
>>> __
>>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>> 
>>> [[alternative HTML version deleted]]
>>> 
>>> __
>>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>> 
>> __
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Jeff Newmiller]

In what way does reminding people that packages exist because others just like 
them contributed something count as being uncivil? Terse, perhaps, since it 
bypassed the obvious suggestion to use a search engine, but not rude.
-- 
Sent from my phone. Please excuse my brevity.

On June 28, 2017 5:08:16 AM EDT, Boris Steipe  wrote:
>I don't think OP asked an unreasonable question at all.
>
>Civility!
>
>
>
>
>> On Jun 27, 2017, at 2:00 PM, Suzen, Mehmet 
>wrote:
>> 
>> Why don't you implement and uplad the package to CRAN?
>> 
>> On 27 Jun 2017 17:45, "Chris Buddenhagen" 
>wrote:
>> 
>> Does anyone know of some code, and examples that implement game
>theory/Nash
>> equilibrium hypothesis testing using existing packages like
>igraph/statnet
>> or similar?
>> 
>> Perhaps along the lines of this article:
>> 
>> Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local
>Nash
>> Equilibrium in Social Networks, *4*, 6224.
>> 
>> Best,
>> Chris Buddenhagen
>> cbuddenha...@gmail.com
>> 
>>[[alternative HTML version deleted]]
>> 
>> __
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>> 
>>  [[alternative HTML version deleted]]
>> 
>> __
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
>__
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>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Boris Steipe]

I don't think OP asked an unreasonable question at all.

Civility!




> On Jun 27, 2017, at 2:00 PM, Suzen, Mehmet  wrote:
> 
> Why don't you implement and uplad the package to CRAN?
> 
> On 27 Jun 2017 17:45, "Chris Buddenhagen"  wrote:
> 
> Does anyone know of some code, and examples that implement game theory/Nash
> equilibrium hypothesis testing using existing packages like igraph/statnet
> or similar?
> 
> Perhaps along the lines of this article:
> 
> Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local Nash
> Equilibrium in Social Networks, *4*, 6224.
> 
> Best,
> Chris Buddenhagen
> cbuddenha...@gmail.com
> 
>[[alternative HTML version deleted]]
> 
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
>   [[alternative HTML version deleted]]
> 
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Suzen, Mehmet]

Why don't you implement and uplad the package to CRAN?

On 27 Jun 2017 17:45, "Chris Buddenhagen"  wrote:

Does anyone know of some code, and examples that implement game theory/Nash
equilibrium hypothesis testing using existing packages like igraph/statnet
or similar?

Perhaps along the lines of this article:

Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local Nash
Equilibrium in Social Networks, *4*, 6224.

Best,
Chris Buddenhagen
cbuddenha...@gmail.com

[[alternative HTML version deleted]]

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[[alternative HTML version deleted]]

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Re: [R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Rui Barradas]

Hello,

A Google search for "R package Local Nash Equilibrium"
got

https://cran.r-project.org/web/packages/GNE/GNE.pdf

as the first hit.

Hope this helps,

Rui Barradas

Em 27-06-2017 16:45, Chris Buddenhagen escreveu:

Does anyone know of some code, and examples that implement game theory/Nash
equilibrium hypothesis testing using existing packages like igraph/statnet
or similar?

Perhaps along the lines of this article:

Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local Nash
Equilibrium in Social Networks, *4*, 6224.

Best,
Chris Buddenhagen
cbuddenha...@gmail.com

[[alternative HTML version deleted]]

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[R] Nash equilibrium and other game theory tools implemented in networks using igraph or similar

[Chris Buddenhagen]

Does anyone know of some code, and examples that implement game theory/Nash
equilibrium hypothesis testing using existing packages like igraph/statnet
or similar?

Perhaps along the lines of this article:

Zhang, Y., Aziz-Alaoui, M. A., Bertelle, C., & Guan, J. (2014). Local Nash
Equilibrium in Social Networks, *4*, 6224.

Best,
Chris Buddenhagen
cbuddenha...@gmail.com

[[alternative HTML version deleted]]

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Re: [R] Nash Equilibrium

[Christophe Dutang]

Hello all,

Months ago, when I wanted to compute Nash equilibria (both standard and 
generalized), I only found one package that implements the discrete, i.e. when 
the player payoff is represented by a matrix. So I decided to implement the 
computation when the payoff is a continuous payoff, generally on a compact set.

The project NE computation is available on R-forge 
(https://r-forge.r-project.org/R/?group_id=860), there is one package called 
GNE computing generalized Nash Equilibria.

Two days ago, I commit a first stable and documented version. Please download 
the binary from the R packages tab. The package depends on the alabama 
package, which depends also on numDeriv. So you need to download these two 
packages as well. 

Once loaded, ?GNE is an overview of the package. I put 3 examples of GNE in the 
man page taken from von Heusinger  Kanzow (2009). 

Christophe  

PS: send me an email if you have problems with the functions.

Le 4 déc. 2010 à 00:25, Ravi Varadhan a écrit :

 I think Christophe Dutang is writing a package for generalized Nash
 Equilibria models called GNE.
 
 I am cc'ing him here.  
 
 I don't know if there are other packages out there.  Christophe would know.
 
 Ravi.
 
 ---
 Ravi Varadhan, Ph.D.
 Assistant Professor,
 Division of Geriatric Medicine and Gerontology School of Medicine Johns
 Hopkins University
 
 Ph. (410) 502-2619
 email: rvarad...@jhmi.edu
 
 
 -Original Message-
 From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
 Behalf Of ivo welch
 Sent: Friday, December 03, 2010 5:40 PM
 To: r-help
 Subject: [R] Nash Equilibrium
 
 Dear R experts:
 
 I searched cran (and r-help) for nash equilibrium and game but
 nothing stuck out.  has someone written a numerical nash optimizer for
 two players?
 
 player a has choices x1,x2,x3,... and cares about (maximizes)
 pa(x1,x2,x3,...,y1,y2,y3)
 player b has choices y1,y2,y3,..., and cares about (maximizes)
 pb(x1,x2,x3,...,y1,y2,y3)
 
 I can tune it to my problem, but if someone has already invented this,
 please point me to it, so that I do not have to reinvent the wheel.
 
 regards,
 
 /iaw
 
 
 Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
 

--
Christophe Dutang
Ph.D. student at ISFA, Lyon, France
website: http://dutangc.free.fr

__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Nash Equilibrium

[Ravi Varadhan]

Hi Christophe,

Aren't you also using fixed-point acceleration schemes (from the SQUAREM 
package) for solving the Nash equilibria?  

How does fixed-point acceleration approach compare to the optimization approach 
in terms of speed and robustness (i.e. convergence from bad starting values)?

Ravi.


Ravi Varadhan, Ph.D.
Assistant Professor,
Division of Geriatric Medicine and Gerontology
School of Medicine
Johns Hopkins University

Ph. (410) 502-2619
email: rvarad...@jhmi.edu


- Original Message -
From: Christophe Dutang duta...@gmail.com
Date: Saturday, December 4, 2010 5:09 am
Subject: Re: [R] Nash Equilibrium
To: Ravi Varadhan rvarad...@jhmi.edu, ivo welch ivo...@gmail.com
Cc: r-help r-h...@stat.math.ethz.ch


 Hello all,
 
 Months ago, when I wanted to compute Nash equilibria (both standard 
 and generalized), I only found one package that implements the 
 discrete, i.e. when the player payoff is represented by a matrix. So I 
 decided to implement the computation when the payoff is a continuous 
 payoff, generally on a compact set.
 
 The project NE computation is available on R-forge (, there is one 
 package called GNE computing generalized Nash Equilibria.
 
 Two days ago, I commit a first stable and documented version. Please 
 download the binary from the R packages tab. The package depends on 
 the alabama package, which depends also on numDeriv. So you need to 
 download these two packages as well. 
 
 Once loaded, ?GNE is an overview of the package. I put 3 examples of 
 GNE in the man page taken from von Heusinger  Kanzow (2009). 
 
 Christophe  
 
 PS: send me an email if you have problems with the functions.
 
 Le 4 déc. 2010 à 00:25, Ravi Varadhan a écrit :
 
  I think Christophe Dutang is writing a package for generalized Nash
  Equilibria models called GNE.
  
  I am cc'ing him here.  
  
  I don't know if there are other packages out there.  Christophe 
 would know.
  
  Ravi.
  
  ---
  Ravi Varadhan, Ph.D.
  Assistant Professor,
  Division of Geriatric Medicine and Gerontology School of Medicine Johns
  Hopkins University
  
  Ph. (410) 502-2619
  email: rvarad...@jhmi.edu
  
  
  -Original Message-
  From: r-help-boun...@r-project.org [ On
  Behalf Of ivo welch
  Sent: Friday, December 03, 2010 5:40 PM
  To: r-help
  Subject: [R] Nash Equilibrium
  
  Dear R experts:
  
  I searched cran (and r-help) for nash equilibrium and game but
  nothing stuck out.  has someone written a numerical nash optimizer for
  two players?
  
  player a has choices x1,x2,x3,... and cares about (maximizes)
  pa(x1,x2,x3,...,y1,y2,y3)
  player b has choices y1,y2,y3,..., and cares about (maximizes)
  pb(x1,x2,x3,...,y1,y2,y3)
  
  I can tune it to my problem, but if someone has already invented this,
  please point me to it, so that I do not have to reinvent the wheel.
  
  regards,
  
  /iaw
  
  
  Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)
  
  __
  R-help@r-project.org mailing list
  
  PLEASE do read the posting guide 
  and provide commented, minimal, self-contained, reproducible code.
  
 
 --
 Christophe Dutang
 Ph.D. student at ISFA, Lyon, France
 website: 
 
 
 
 
 


__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Nash Equilibrium

[Christophe Dutang]

Finally, I decided not to depends on SQUAREM, which I used for testing. 
Nevertherless extrapolation methods for fixed point iteration are at least 
twice faster than the crude fixed-point iteration or other relaxation methods. 
Later I would like to do a real benchmark of all methods, not just fixed-point 
iterations.

Christophe

Le 4 déc. 2010 à 15:49, Ravi Varadhan a écrit :

 
 Hi Christophe,
 
 Aren't you also using fixed-point acceleration schemes (from the SQUAREM 
 package) for solving the Nash equilibria?  
 
 How does fixed-point acceleration approach compare to the optimization 
 approach in terms of speed and robustness (i.e. convergence from bad starting 
 values)?
 
 Ravi.
 
 
 Ravi Varadhan, Ph.D.
 Assistant Professor,
 Division of Geriatric Medicine and Gerontology
 School of Medicine
 Johns Hopkins University
 
 Ph. (410) 502-2619
 email: rvarad...@jhmi.edu
 
 
 - Original Message -
 From: Christophe Dutang duta...@gmail.com
 Date: Saturday, December 4, 2010 5:09 am
 Subject: Re: [R] Nash Equilibrium
 To: Ravi Varadhan rvarad...@jhmi.edu, ivo welch ivo...@gmail.com
 Cc: r-help r-h...@stat.math.ethz.ch
 
 
 Hello all,
 
 Months ago, when I wanted to compute Nash equilibria (both standard 
 and generalized), I only found one package that implements the 
 discrete, i.e. when the player payoff is represented by a matrix. So I 
 decided to implement the computation when the payoff is a continuous 
 payoff, generally on a compact set.
 
 The project NE computation is available on R-forge (, there is one 
 package called GNE computing generalized Nash Equilibria.
 
 Two days ago, I commit a first stable and documented version. Please 
 download the binary from the R packages tab. The package depends on 
 the alabama package, which depends also on numDeriv. So you need to 
 download these two packages as well. 
 
 Once loaded, ?GNE is an overview of the package. I put 3 examples of 
 GNE in the man page taken from von Heusinger  Kanzow (2009). 
 
 Christophe  
 
 PS: send me an email if you have problems with the functions.
 
 Le 4 déc. 2010 à 00:25, Ravi Varadhan a écrit :
 
 I think Christophe Dutang is writing a package for generalized Nash
 Equilibria models called GNE.
 
 I am cc'ing him here.  
 
 I don't know if there are other packages out there.  Christophe 
 would know.
 
 Ravi.
 
 ---
 Ravi Varadhan, Ph.D.
 Assistant Professor,
 Division of Geriatric Medicine and Gerontology School of Medicine Johns
 Hopkins University
 
 Ph. (410) 502-2619
 email: rvarad...@jhmi.edu
 
 
 -Original Message-
 From: r-help-boun...@r-project.org [ On
 Behalf Of ivo welch
 Sent: Friday, December 03, 2010 5:40 PM
 To: r-help
 Subject: [R] Nash Equilibrium
 
 Dear R experts:
 
 I searched cran (and r-help) for nash equilibrium and game but
 nothing stuck out.  has someone written a numerical nash optimizer for
 two players?
 
 player a has choices x1,x2,x3,... and cares about (maximizes)
 pa(x1,x2,x3,...,y1,y2,y3)
 player b has choices y1,y2,y3,..., and cares about (maximizes)
 pb(x1,x2,x3,...,y1,y2,y3)
 
 I can tune it to my problem, but if someone has already invented this,
 please point me to it, so that I do not have to reinvent the wheel.
 
 regards,
 
 /iaw
 
 
 Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)
 
 __
 R-help@r-project.org mailing list
 
 PLEASE do read the posting guide 
 and provide commented, minimal, self-contained, reproducible code.
 
 
 --
 Christophe Dutang
 Ph.D. student at ISFA, Lyon, France
 website: 
 
 
 
 
 
 

--
Christophe Dutang
Ph.D. student at ISFA, Lyon, France
website: http://dutangc.free.fr

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Nash Equilibrium

[Paul Smith]

On Sat, Dec 4, 2010 at 10:09 AM, Christophe Dutang duta...@gmail.com wrote:
 Months ago, when I wanted to compute Nash equilibria (both standard and 
 generalized), I only found one package that implements the discrete, i.e. 
 when the player payoff is represented by a matrix.

Could you please tell us which R package solves matrix games?

Paul

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[R] Nash Equilibrium

[ivo welch]

Dear R experts:

I searched cran (and r-help) for nash equilibrium and game but
nothing stuck out.  has someone written a numerical nash optimizer for
two players?

player a has choices x1,x2,x3,... and cares about (maximizes)
pa(x1,x2,x3,...,y1,y2,y3)
player b has choices y1,y2,y3,..., and cares about (maximizes)
pb(x1,x2,x3,...,y1,y2,y3)

I can tune it to my problem, but if someone has already invented this,
please point me to it, so that I do not have to reinvent the wheel.

regards,

/iaw


Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Nash Equilibrium

[Ravi Varadhan]

I think Christophe Dutang is writing a package for generalized Nash
Equilibria models called GNE.

I am cc'ing him here.  

I don't know if there are other packages out there.  Christophe would know.

Ravi.

---
Ravi Varadhan, Ph.D.
Assistant Professor,
Division of Geriatric Medicine and Gerontology School of Medicine Johns
Hopkins University

Ph. (410) 502-2619
email: rvarad...@jhmi.edu


-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of ivo welch
Sent: Friday, December 03, 2010 5:40 PM
To: r-help
Subject: [R] Nash Equilibrium

Dear R experts:

I searched cran (and r-help) for nash equilibrium and game but
nothing stuck out.  has someone written a numerical nash optimizer for
two players?

player a has choices x1,x2,x3,... and cares about (maximizes)
pa(x1,x2,x3,...,y1,y2,y3)
player b has choices y1,y2,y3,..., and cares about (maximizes)
pb(x1,x2,x3,...,y1,y2,y3)

I can tune it to my problem, but if someone has already invented this,
please point me to it, so that I do not have to reinvent the wheel.

regards,

/iaw


Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Nash Equilibrium

[Spencer Graves]

Might something like Nash-Sutcliffe Efficiency be relevant?


I found this as follows:


library(sos)
(n - ???nash)
# found 22 links in 11 packages


  Hope this helps.
  Spencer


On 12/3/2010 3:25 PM, Ravi Varadhan wrote:

I think Christophe Dutang is writing a package for generalized Nash
Equilibria models called GNE.

I am cc'ing him here.

I don't know if there are other packages out there.  Christophe would know.

Ravi.

---
Ravi Varadhan, Ph.D.
Assistant Professor,
Division of Geriatric Medicine and Gerontology School of Medicine Johns
Hopkins University

Ph. (410) 502-2619
email: rvarad...@jhmi.edu


-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of ivo welch
Sent: Friday, December 03, 2010 5:40 PM
To: r-help
Subject: [R] Nash Equilibrium

Dear R experts:

I searched cran (and r-help) for nash equilibrium and game but
nothing stuck out.  has someone written a numerical nash optimizer for
two players?

player a has choices x1,x2,x3,... and cares about (maximizes)
pa(x1,x2,x3,...,y1,y2,y3)
player b has choices y1,y2,y3,..., and cares about (maximizes)
pb(x1,x2,x3,...,y1,y2,y3)

I can tune it to my problem, but if someone has already invented this,
please point me to it, so that I do not have to reinvent the wheel.

regards,

/iaw


Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.





--
Spencer Graves, PE, PhD
President and Chief Operating Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San José, CA 95126
ph:  408-655-4567

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Nash Equilibrium

[Ravi Varadhan]

No, Spencer.  Nash-Sutcliff efficiency is due to John E. Nash. It is
unrelated to game theory.

The well-known Nash equilibrium in game theory is due to John Forbes Nash,
Jr.

Ravi.

---
Ravi Varadhan, Ph.D.
Assistant Professor,
Division of Geriatric Medicine and Gerontology School of Medicine Johns
Hopkins University

Ph. (410) 502-2619
email: rvarad...@jhmi.edu


-Original Message-
From: Spencer Graves [mailto:spencer.gra...@structuremonitoring.com] 
Sent: Friday, December 03, 2010 6:52 PM
To: Ravi Varadhan
Cc: 'ivo welch'; 'r-help'; duta...@gmail.com
Subject: Re: [R] Nash Equilibrium

Might something like Nash-Sutcliffe Efficiency be relevant?


I found this as follows:


library(sos)
(n - ???nash)
# found 22 links in 11 packages


   Hope this helps.
   Spencer


On 12/3/2010 3:25 PM, Ravi Varadhan wrote:
 I think Christophe Dutang is writing a package for generalized Nash
 Equilibria models called GNE.

 I am cc'ing him here.

 I don't know if there are other packages out there.  Christophe would
know.

 Ravi.

 ---
 Ravi Varadhan, Ph.D.
 Assistant Professor,
 Division of Geriatric Medicine and Gerontology School of Medicine Johns
 Hopkins University

 Ph. (410) 502-2619
 email: rvarad...@jhmi.edu


 -Original Message-
 From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
On
 Behalf Of ivo welch
 Sent: Friday, December 03, 2010 5:40 PM
 To: r-help
 Subject: [R] Nash Equilibrium

 Dear R experts:

 I searched cran (and r-help) for nash equilibrium and game but
 nothing stuck out.  has someone written a numerical nash optimizer for
 two players?

 player a has choices x1,x2,x3,... and cares about (maximizes)
 pa(x1,x2,x3,...,y1,y2,y3)
 player b has choices y1,y2,y3,..., and cares about (maximizes)
 pb(x1,x2,x3,...,y1,y2,y3)

 I can tune it to my problem, but if someone has already invented this,
 please point me to it, so that I do not have to reinvent the wheel.

 regards,

 /iaw

 
 Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
Spencer Graves, PE, PhD
President and Chief Operating Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San José, CA 95126
ph:  408-655-4567

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.