- Pharo-users - lists.pharo.org

Re: [Pharo-users] Statistics package in Pharo?

by Blondeau Vincent

Hi Julien, If you are doing some statistics, I am pretty sure that you use R. There is a connector to R software implemented in Pharo. You can use it if some methods are not implemented or too complex to do it by yourself. The link is here: http://www.smalltalkhub.com/#!/~VincentBlondeau/RProjectConnector/ Don't hesitate to ask if you need some help on it. Vincent -----Message d'origine----- De : Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] De la part de Julien Delplanque EnvoyÃ© : mardi 3 mars 2015 12:59 Ã : pharo-users(a)lists.pharo.org Objet : Re: [Pharo-users] Statistics package in Pharo? Doesn't look like there is what I'm looking for. Maybe I'll implement things I need if I have time but probably not a complete package for statistics. :) On 03/03/15 12:46, Alexandre Bergel wrote: > Hi Julien, > > Indeed, having a nice statistical package is missing in Pharo. The numerical methods is a nice start. > If things are missing, we should implement them. > > Cheers, > Alexandre > >> On Mar 3, 2015, at 5:52 AM, Julien Delplanque <julien(a)tamere.eu> wrote: >> >> Wow lots of classes, I'll browse the package and tell you if that's >> what I need :) >> >> Thanks. >> >> On 03/03/15 11:46, Sebastian Tleye wrote: >>> The only package that I know that has statistical tools is >>> NumericalMethods, you can install it by going to >>> tools->Configuraiton >>> Browser->NumericalMethods. >>> >>> Check if it has what you need >>> >>> 2015-03-03 11:40 GMT+01:00 Julien Delplanque <julien(a)tamere.eu>: >>> >>>> Hi everyone, >>>> >>>> Does anyone know if there is a package that contains implementation >>>> of statistics tests like Kolmogorov-Smirnov test, Khi-2 test, etc? >>>> >>>> I did fast research in Smalltalkhub but didn't found anything. >>>> >>>> Thanks in advance, >>>> >>>> Julien >>>> >>>> >> Ce message et les piÃ¨ces jointes sont confidentiels et rÃ©servÃ©s Ã l'usage exclusif de ses destinataires. Il peut Ã©galement Ãªtre protÃ©gÃ© par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir immÃ©diatement l'expÃ©diteur et de le dÃ©truire. L'intÃ©gritÃ© du message ne pouvant Ãªtre assurÃ©e sur Internet, la responsabilitÃ© de Worldline ne pourra Ãªtre recherchÃ©e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'expÃ©diteur ne donne aucune garantie Ã cet Ã©gard et sa responsabilitÃ© ne saurait Ãªtre recherchÃ©e pour tout dommage rÃ©sultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted.

March 3, 2015

Re: [Pharo-users] roassal pixel rendering

by Peter UhnÃ¡k

> > with cairo, coordinates are between pixels > > -> http://cairographics.org/FAQ/#sharp_lines > > Aha! Thank you. Now the question is how this could be solved. One of their suggestions is use even-integer width, but that from principle wouldn't be true, since it still overlaps by half-a-pixel (so one full and two 1/2 pixels). So the other option is to apply transformation matrix to the whole visualization? So much work for a sharp line. :( And considering that it seems to be blurred in one axis differently than the other... I'll play some more with it. Pete

March 3, 2015

Re: [Pharo-users] roassal pixel rendering

by Nicolai Hess

2015-03-03 15:44 GMT+01:00 Hilaire <hilaire(a)drgeo.eu>: > Le 02/03/2015 23:31, Peter UhnÃ¡k a Ã©crit : > > > > basically one pixel lines will get blurred for some reason even though > > there is no half-pixel overlapping. > > > > I noted the same visual artefact on Dr. Geo with perfectly horizontal 1 > pixel width/horizontal line (enclosed zoomed screenshot) > with cairo, coordinates are between pixels -> http://cairographics.org/FAQ/#sharp_lines > > Hilaire > > -- > Dr. Geo - http://drgeo.eu > iStoa - http://istoa.drgeo.eu > >

March 3, 2015

Re: [Pharo-users] roassal pixel rendering

by Hilaire

Le 02/03/2015 23:31, Peter UhnÃ¡k a Ã©crit : > > basically one pixel lines will get blurred for some reason even though > there is no half-pixel overlapping. > I noted the same visual artefact on Dr. Geo with perfectly horizontal 1 pixel width/horizontal line (enclosed zoomed screenshot) Hilaire -- Dr. Geo - http://drgeo.eu iStoa - http://istoa.drgeo.eu

March 3, 2015

Re: [Pharo-users] Fwd: [Pharo Consortium] Your organization application has been rejected.

by Sven Van Caekenberghe

Well, we're not alone: Mozilla not accepted for Google Summer of Code 2015 http://blog.queze.net/post/2015/03/03/Mozilla-not-accepted-for-Google-Summe… Like Stef said, we just continue. > On 03 Mar 2015, at 10:01, ClÃ©ment Bera <bera.clement(a)gmail.com> wrote: > > Well, this year google it looks like accepted less organizations. > > 2012: 180 organizations accepted. > 2013: 177 organizations accepted. > 2014: 190 organizations accepted. > 2015: 137 organizations accepted. > > A few projects with ESUG could be nice for sure. But there we will have in the same issues again: typically, a student cannot in 3 months make his project working for all existing smalltalk, ... > > 2015-03-03 9:12 GMT+01:00 Joachim Tuchel <jtuchel(a)objektfabrik.de>: > Bad news. I am eager to hear if there is something to learn from their feedback. > > Now that both ESUG and Pharo have been rejected two years in a row, maybe it is time to think about ways to revive, or re-promote, the ESUG initiatives to sponsor student projects. > > Joachim > > Am 03.03.2015 08:59 schrieb Serge Stinckwich <serge.stinckwich(a)gmail.com>: > > > > Bad news from Google ... > > We will ask some explanations with Uko. > > > > > > ---------- Forwarded message ---------- > > From: <no-reply(a)google-melange.appspotmail.com> > > Date: Mon, Mar 2, 2015 at 7:56 PM > > Subject: [Pharo Consortium] Your organization application has been rejected. > > To: serge.stinckwich(a)gmail.com > > > > > > Thank you for submitting Pharo Consortium's application to Google > > Summer of Code 2015. Unfortunately, we were unable to accept your > > organization's application at this time. Every year we receive many > > more applications than we are able to accommodate, and we would > > encourage you to reapply for future instances of the program. > > > > If you would like some general feedback on why your organization was > > not accepted, please consider attending the IRC meeting in #gsoc on > > Freenode on Friday, 6 March, 2015 at 16:00 UTC. Please note that the > > feedback meeting will be limited to the first 50 organizations to > > queue up (queuing in the channel will begin at 15:30 UTC). You are > > also more than welcome to just email the OSPO team at > > ospoteam(a)gmail.com directly for email feedback about your application > > as well. > > > > Best regards, > > > > > > -- > > Serge Stinckwich > > UCBN & UMI UMMISCO 209 (IRD/UPMC) > > Every DSL ends up being Smalltalk > > http://www.doesnotunderstand.org/ > > > > >

March 3, 2015

Re: [Pharo-users] Statistics package in Pharo?

by Alexandre Bergel

It does not really matter. Start to write your stat test and we will go over it. This is --highly-- important to have such tests. Alexandre > Le 3 mars 2015 Ã 07:22, Julien Delplanque <julien(a)tamere.eu> a Ã©crit : > >> On 03/03/15 13:11, Serge Stinckwich wrote: >> This is not really difficult to implement a khi2 or ks-test. I'm doing that with my 1st year university student in Python. I will try if I found sone time in Pharo. > I know it's not complicated, I had to implement KS test in python for > another project (but I don't think you are one of my professor :p). > > I will do it soon but I'm still noob in smalltalk so I don't know where > to implement this and how: class messages or object messages for example? > > Julien >

March 3, 2015

Re: [Pharo-users] Statistics package in Pharo?

by Serge Stinckwich

Start to write tests ! Sent from my iPhone > On 3 mars 2015, at 13:22, Julien Delplanque <julien(a)tamere.eu> wrote: > >> On 03/03/15 13:11, Serge Stinckwich wrote: >> This is not really difficult to implement a khi2 or ks-test. I'm doing that with my 1st year university student in Python. I will try if I found sone time in Pharo. > I know it's not complicated, I had to implement KS test in python for > another project (but I don't think you are one of my professor :p). > > I will do it soon but I'm still noob in smalltalk so I don't know where > to implement this and how: class messages or object messages for example? > > Julien >

March 3, 2015

Re: [Pharo-users] Statistics package in Pharo?

by kilon alios

I use class method for generic actions that are not to be performed per instance of data. But if I have multiple instances of data then instance methods make more sense. Some classes offer both instance and class methods doing the same process. So in the end its up to you there is no golden rule. For example you may have a class method that return the instance of the class which you can then use to trigger additional instance methods. Sky is the limit ;) On Tue, Mar 3, 2015 at 2:22 PM, Julien Delplanque <julien(a)tamere.eu> wrote: > On 03/03/15 13:11, Serge Stinckwich wrote: > > This is not really difficult to implement a khi2 or ks-test. I'm doing > that with my 1st year university student in Python. I will try if I found > sone time in Pharo. > I know it's not complicated, I had to implement KS test in python for > another project (but I don't think you are one of my professor :p). > > I will do it soon but I'm still noob in smalltalk so I don't know where > to implement this and how: class messages or object messages for example? > > Julien > >

March 3, 2015

Re: [Pharo-users] SmaCC: First steps

by kilon alios

"Because this two productions define a list of stmt (possibly empty) and the AST generation code notices that, so it adds an s to statement and prepare that instance variable to be an OrderedCollection." yes but I find it a bit misleading because even when there is a single element it still going to create an OrderedCollection and still add "s" to the name of the variable. By they way I have been successful into implementing , with your help, a parser that parses python lists into pharo ordered collections. Python tuples and dictionaries are next. Have not implemented nesting types but that is very close too. Took me a lot of time to understand the syntax of SmaCC and moreover to be able to understand the grammar used for the PythonParser2. I decided not to change the grammar since it can do what I want as it is and augment any additional parsing with my own classes. Now I understand the meaning of tests, PyAtomNode and more importantly PyPowerNode. My overall experience with Smacc has been quite positive , the documentation is in a good state though I would like more practical examples especially on the matter of visitor. I love the Smacc syntax, its compact , readable and fairly easy to understand. I really like the design of the classes , make sense and are predictable. A final question is how up to date in the configuration loaded with configuration browser. The only thing I really missed from Smacc is a specialised to help me browse the huge python grammar. Scrolling around became very tedious .

March 3, 2015

Re: [Pharo-users] Statistics package in Pharo?

by Julien Delplanque

On 03/03/15 13:11, Serge Stinckwich wrote: > This is not really difficult to implement a khi2 or ks-test. I'm doing that with my 1st year university student in Python. I will try if I found sone time in Pharo. I know it's not complicated, I had to implement KS test in python for another project (but I don't think you are one of my professor :p). I will do it soon but I'm still noob in smalltalk so I don't know where to implement this and how: class messages or object messages for example? Julien

March 3, 2015