- Pharo-dev - lists.pharo.org

Re: [Pharo-dev] feedback about 50628

by Tudor Girba

Hi, > On Mar 5, 2016, at 10:59 AM, stepharo <stepharo(a)free.fr> wrote: > > Hi > > I tried to restart shooting videos for the mooc. > > - When I use Spotter I get a rubric error (subscript ....) > Doru did you tell me that it was fixed? or did I got it wrong? The SubscriptOutOfBounds error comes from Rubric which is not threadsafe. This problem happened all the time, and now it should only happen when the text is larger than 3k characters because otherwise the highlighting is done in the same thread. As far as I can see, we are stuck with this problem. So, I think we might have to remove the syntax highlighting from Rubric in Spotter :(. Doru > - then > DisplayScreen hostWindowSize: 1920@1080 > is crashing the VM (and I'm not resizing the window during package load) from time to time > stef > > -- www.tudorgirba.com www.feenk.com "Be rather willing to give than demanding to get."

March 5, 2016

Re: [Pharo-dev] [Pharo-users] Call about Numerical Methods in Pharo :)

by Sven Van Caekenberghe

> On 05 Mar 2016, at 11:37, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > frankly all this zealot mails do not have any sense. > > first, SciSmalltalk is a project made fundamentally by Serge, and is Serge who has pointed he wants a change of name for something sexierâ¦ what is the problem? > second, by discussing a nonsense (because is subjective and everybody has a different opinion) you are highjacking the real purpose of this mail: a call to the community to improve the numerical methods support in Pharo. > > So, please, can we stay cool and go back to discuss what is really important? +100 > cheers, > Esteban > > >> On 02 Mar 2016, at 14:33, stepharo <stepharo(a)free.fr> wrote: >> >> Hi guys >> >> I met Didier Besset and we had a great hacking session and discussions with Serge Stinckwich. >> Didier would like to help Pharo and the numerical part of it. ***Big thanks*** Didier. >> >> We would like to do several things: >> >> - Work on "Hows to" >> The numerical methods in Pharo is good but the gap between us and the math is too large :) >> so the idea is to have a series of "how to ..." >> - histomgram (simple, based on distribution) >> >> - Improve the SciPharo/NumPha (previously SciSmalltalk) library >> This morning we started to implement a ComponentPrincipalDecomposition by combining two of the >> objects available in SciPharo. >> Then we started to enhance the distributions to make sure that we can plug other distribution for having >> controlled random number. >> >> - Do a public call to know what is missing for you: this is this mail :) >> Didier would like to work on concrete cases. I love that attitude >> So tell us :) >> >> Hernan ?? >> Alex: ?? pvalue? better distribution? >> Vincent: covariance? CPA? >> Philippe: times series >> Serge R frames? >> Sami: Better random number and various distributions? >> >> - Organise a two day lectures with practices on concrete case in September with a recording session. >> Either at IRD Bondy or Lille. >> >> - Make sure that the Numerical Method book will get on lulu :) with a better cover and title :) >> >> >> Stef >> >> > >

March 5, 2016

Re: [Pharo-dev] Call about Numerical Methods in Pharo :)

by Esteban Lorenzano

frankly all this zealot mails do not have any sense. first, SciSmalltalk is a project made fundamentally by Serge, and is Serge who has pointed he wants a change of name for something sexierâ¦ what is the problem? second, by discussing a nonsense (because is subjective and everybody has a different opinion) you are highjacking the real purpose of this mail: a call to the community to improve the numerical methods support in Pharo. So, please, can we stay cool and go back to discuss what is really important? cheers, Esteban > On 02 Mar 2016, at 14:33, stepharo <stepharo(a)free.fr> wrote: > > Hi guys > > I met Didier Besset and we had a great hacking session and discussions with Serge Stinckwich. > Didier would like to help Pharo and the numerical part of it. ***Big thanks*** Didier. > > We would like to do several things: > > - Work on "Hows to" > The numerical methods in Pharo is good but the gap between us and the math is too large :) > so the idea is to have a series of "how to ..." > - histomgram (simple, based on distribution) > > - Improve the SciPharo/NumPha (previously SciSmalltalk) library > This morning we started to implement a ComponentPrincipalDecomposition by combining two of the > objects available in SciPharo. > Then we started to enhance the distributions to make sure that we can plug other distribution for having > controlled random number. > > - Do a public call to know what is missing for you: this is this mail :) > Didier would like to work on concrete cases. I love that attitude > So tell us :) > > Hernan ?? > Alex: ?? pvalue? better distribution? > Vincent: covariance? CPA? > Philippe: times series > Serge R frames? > Sami: Better random number and various distributions? > > - Organise a two day lectures with practices on concrete case in September with a recording session. > Either at IRD Bondy or Lille. > > - Make sure that the Numerical Method book will get on lulu :) with a better cover and title :) > > > Stef > >

March 5, 2016

menu items shifted around

by stepharo

Hi I think that we have a bug in menu with rubric. I spotted this with Frank last summer and it is visible in profstef. When you bring the profstef menu the do it menu item is moved out of the list and put at the end of the items. In the past we got the same at the beginning of the list. Stef

March 5, 2016

feedback about 50628

by stepharo

Hi I tried to restart shooting videos for the mooc. - When I use Spotter I get a rubric error (subscript ....) Doru did you tell me that it was fixed? or did I got it wrong? - then DisplayScreen hostWindowSize: 1920@1080 is crashing the VM (and I'm not resizing the window during package load) from time to time stef

March 5, 2016

Re: [Pharo-dev] CollectionValueHolder ValueAdded ValueRemoved

by stepharo

Go for it :) Because indeed if you need to know what changed there is not that much of magic. Le 3/3/16 12:50, Peter UhnÃ¡k a Ã©crit : > This is something that was discussed some time ago but never resolved. > > To summarize: > > When working with CollectionValueHolder one can only see whether the > collection as a whole changed and not how, e.g. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > col := OrderedCollection new asValueHolder. > col add: 1. > col add: 2. > col add: 3. > col add: 4. > col whenChangedDo: [ :c :changedValue | > 1halt. > ]. > "col = #(1 2 3 4)" > > col add: 4. "whenChangedDo: c = col, changedValue = 4" > col remove: 4. "whenChangedDo: c = col, changedValue = 4" > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > In the last two cases the changedValue is the same so I can't tell > from the block if the value was added or removed. > > My proposition: > > * introduce (at least) two more Announcements: ValueAdded and ValueRemoved > * add messages #whenAddedDo:/#whenChangedDo: > * maybe add #when:do: so it can be used as an announcable object > (valueHolder when: ValueSomething do: [ :ann | ... ]) > > The ValueAdded/ValueRemoved would be fired when an item is added, > resp. removed. > > Thierry also proposed to add an index (I'd make it optional). > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > col whenAddedDo: [ :col :addedValue :optionalIndex | "here we know for > sure that value was added" ]. > > col whenRemovedDo: [ :col :addedValue :optionalIndex | "here we know > for sure that value was removed" ] > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > Finally Thierry mentioned a way to handle situations where values are > replaced (either single one or multiple ones). As this is edge > use-case and the current behavior is pretty much random I wouldn't > address the replacement unless a defined use case emerges. > > Any thoughts, > Peter > > > >

March 5, 2016

Fwd: Re: Call about Numerical Methods in Pharo :)

by stepharo

-------- Message transfÃ©rÃ© -------- Sujet : Re: Call about Numerical Methods in Pharo :) Date : Wed, 02 Mar 2016 22:58:37 +0100 De : Souissi Sami <Sami.Souissi(a)univ-lille1.fr> Pour : stepharo <stepharo(a)free.fr> Copie Ã : Pharo Development List <pharo-dev(a)lists.pharo.org>, Any question about pharo is welcome <pharo-users(a)lists.pharo.org>, Didier Besset <didier(a)ieee.org> Dear StÃ©phane, dear all Many thanks StÃ©phane for this excellent initiative, Although I am a 'new' memer in pharo 'world' but I will be interested to see how can we enrich numerically the tool and hope that we can be able to have more generators for probability distributions (random numbers, Gamma, Log-Normal, etc) as well as some algorithms used to generale different random walks that can be used in several agent-based models (fractal; multifractal, LÃ©vy etc) I have also good experience with time-series analysis and other approaches (Bayesian), Happy to see that Serge started such development, Looking to have more interactions on these numerical issues and looking to meet you in the near future Best wishes Sami Sami Souissi, Professor UniversitÃ© Lille Sciences & Technologies UMR CNR Le Mercredi 2 Mars 2016 14:33 CET, stepharo <stepharo(a)free.fr> a Ã©crit: > Hi guys > > I met Didier Besset and we had a great hacking session and discussions > with Serge Stinckwich. > Didier would like to help Pharo and the numerical part of it. ***Big > thanks*** Didier. > > We would like to do several things: > > - Work on "Hows to" > The numerical methods in Pharo is good but the gap between us and > the math is too large :) > so the idea is to have a series of "how to ..." > - histomgram (simple, based on distribution) > > - Improve the SciPharo/NumPha (previously SciSmalltalk) library > This morning we started to implement a > ComponentPrincipalDecomposition by combining two of the > objects available in SciPharo. > Then we started to enhance the distributions to make sure that > we can plug other distribution for having > controlled random number. > > - Do a public call to know what is missing for you: this is this > mail :) > Didier would like to work on concrete cases. I love that attitude > So tell us :) > > Hernan ?? > Alex: ?? pvalue? better distribution? > Vincent: covariance? CPA? > Philippe: times series > Serge R frames? > Sami: Better random number and various distributions? > > - Organise a two day lectures with practices on concrete case in > September with a recording session. > Either at IRD Bondy or Lille. > > - Make sure that the Numerical Method book will get on lulu :) with > a better cover and title :) > > > Stef

March 5, 2016

Re: [Pharo-dev] [Pharo-users] Little how to

by stepharo

So cooooooooooooooooooooooooooool, it was on my todo with my son. --- this is really true, he came and told me I want to build my own game... And we do not have a game framework in our community --- at least one that I understand. So I was looking at Ruby or JS :( And clement show me the link and how he extracted the png. So we will do that this afternoon and add this as a challenge for the mooc I should have got faster :). Le 3/3/16 22:58, Tudor Girba a Ã©crit : > Hi, > > I wrote a little post with a how to extract sprites from a larger png file: > http://www.humane-assessment.com/blog/extracting-sprite-from-png > > Cheers, > Doru > > >> On Mar 3, 2016, at 9:23 AM, stepharo <stepharo(a)free.fr> wrote: >> >> Hi guys >> >> for the mooc I would like have a list of how to that students should look in the system and implement. >> The idea is to show to the participants that Pharo is open and that they can find information. >> For example, >> - extracting a sprite from a png file >> - access a time service of the web >> >> Now I would love to get your ideas and their solution. >> >> Stef >> >> >> > -- > www.tudorgirba.com > www.feenk.com > > "Beauty is where we see it." > > > > > >

March 5, 2016

Re: [Pharo-dev] [Pharo-users] Little how to

by stepharo

Yes but they should find them :) Le 3/3/16 18:32, Alexandre Bergel a Ã©crit : > These little how to may be included as an help in the image. > > Alexandre > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > >> On Mar 3, 2016, at 5:23 AM, stepharo <stepharo(a)free.fr >> <mailto:stepharo@free.fr>> wrote: >> >> Hi guys >> >> for the mooc I would like have a list of how to that students should >> look in the system and implement. >> The idea is to show to the participants that Pharo is open and that >> they can find information. >> For example, >> - extracting a sprite from a png file >> - access a time service of the web >> >> Now I would love to get your ideas and their solution. >> >> Stef >> >> >> >

March 5, 2016

Re: [Pharo-dev] Little how to

by stepharo

Mega tx :) Le 3/3/16 15:28, Stephan Eggermont a Ã©crit : >> >> email := 'damien(a)cassou.me'. >> url := 'http://www.gravatar.com/avatar/', (MD5 hashMessage: email >> trimBoth asLowercase) hex, '.jpg'. >> (ZnEasy getJpeg: url) asMorph openInHand >> > > ifError: ["hmm, might be a png instead" > ZnEasy getPng: 'http://www.gravatar.com/avatar/', > (self hash: anEmail asLowercase),'.png?s=30'].

March 5, 2016