- Pharo-users - lists.pharo.org

[ANN] Launchpad v4.1.0 [v4.1.0] released!

by Buenos Aires Smalltalk

Dec. 2, 2021

Re: Pharo Graphs

by Offray Vladimir Luna CÃ¡rdenas

Thanks Sebastian and Stephane, Pretty cool! Offray On 1/12/21 9:56, Sebastian Jordan Montano wrote: > Hello everybody, > > We are happy to announce that we have a brand new library for graphs > algorithms in Pharo! We have implemented some of the most-know graph > algorithms like: Dijkstra, Tarjan, BFS, Kruskal, Topological Sort, and > more. > Here is the GitHub repository: > https://github.com/pharo-ai/graph-algorithms > > Also, we wrote a booklet for the ones interested in graph theory in > the computer science context. In the booklet, we explain how the > algorithms work, the logic behind them, and the Pharo implementation. > Also, we show in which real-life scenarios they can be applied. > Here is the booklet link: > https://github.com/SquareBracketAssociates/Booklet-PharoGraphs (there > is the link of pdf on the README). > > We are interested in any kind of feedback! > > Thanks, > Sebastian Jordan

Dec. 2, 2021

Re: Pharo Graphs

by Sebastian Jordan Montano

Hello Serge, The plan is only to remove the graph algorithms from the Moose Algo (Moose-Algos-Graph) and to load them from the Pharo AI library instead. I saw that you reference in graph generator algos some classes of the edges. What we can do is to use the nodes from the pharo-ai library instead. But also I think that it could be interesting to move the graphs generator to pharo-ai repo. I do not know. What do you think? We can discuss it. Regards, Sebastian De: "Serge Stinckwich" <serge.stinckwich(a)gmail.com> Ã: "pharo-users" <pharo-users(a)lists.pharo.org> EnvoyÃ©: Jeudi 2 DÃ©cembre 2021 07:17:52 Objet: [Pharo-users] Re: Pharo Graphs BQ_BEGIN Thank you Sebastian. Great to have this library. I have implemented various random graph generation algorithms that are part now of the MooseAlgo library: [ https://github.com/moosetechnology/moosealgos | https://github.com/moosetechnology/moosealgos ] Like Albert-Barabasi algorithm and others: [ https://github.com/moosetechnology/MooseAlgos/tree/development/src/Moose-Al… | https://github.com/moosetechnology/MooseAlgos/tree/development/src/Moose-Al… ] I planned to implement new algorithms that I needed for my work. Do you plan to replace completely MooseAlgo with the new library? Regards, On Wed, 1 Dec 2021 at 22:56, Sebastian Jordan Montano < [ mailto:sebastian.jordan@inria.fr | sebastian.jordan(a)inria.fr ] > wrote: BQ_BEGIN Hello everybody, We are happy to announce that we have a brand new library for graphs algorithms in Pharo! We have implemented some of the most-know graph algorithms like: Dijkstra, Tarjan, BFS, Kruskal, Topological Sort, and more. Here is the GitHub repository: [ https://github.com/pharo-ai/graph-algorithms | https://github.com/pharo-ai/graph-algorithms ] Also, we wrote a booklet for the ones interested in graph theory in the computer science context. In the booklet, we explain how the algorithms work, the logic behind them, and the Pharo implementation. Also, we show in which real-life scenarios they can be applied. Here is the booklet link: [ https://github.com/SquareBracketAssociates/Booklet-PharoGraphs | https://github.com/SquareBracketAssociates/Booklet-PharoGraphs ] (there is the link of pdf on the README). We are interested in any kind of feedback! Thanks, Sebastian Jordan BQ_END -- Serge Stinckwic âhâ [ https://twitter.com/SergeStinckwich | https://twitter.com/SergeStinckwich ] â BQ_END

Dec. 2, 2021

Re: Pharo Graphs

by Serge Stinckwich

Thank you Sebastian. Great to have this library. I have implemented various random graph generation algorithms that are part now of the MooseAlgo library: https://github.com/moosetechnology/moosealgos Like Albert-Barabasi algorithm and others: https://github.com/moosetechnology/MooseAlgos/tree/development/src/Moose-Al… I planned to implement new algorithms that I needed for my work. Do you plan to replace completely MooseAlgo with the new library? Regards, On Wed, 1 Dec 2021 at 22:56, Sebastian Jordan Montano < sebastian.jordan(a)inria.fr> wrote: > Hello everybody, > > We are happy to announce that we have a brand new library for graphs > algorithms in Pharo! We have implemented some of the most-know graph > algorithms like: Dijkstra, Tarjan, BFS, Kruskal, Topological Sort, and more. > Here is the GitHub repository: > https://github.com/pharo-ai/graph-algorithms > > Also, we wrote a booklet for the ones interested in graph theory in the > computer science context. In the booklet, we explain how the algorithms > work, the logic behind them, and the Pharo implementation. Also, we show in > which real-life scenarios they can be applied. > Here is the booklet link: > https://github.com/SquareBracketAssociates/Booklet-PharoGraphs (there is > the link of pdf on the README). > > We are interested in any kind of feedback! > > Thanks, > Sebastian Jordan > -- Serge Stinckwic âhâ https://twitter.com/SergeStinckwich â

Dec. 2, 2021

[ANN] Superluminal v3.0.0 [v3.0.0] released!

by Buenos Aires Smalltalk

Dec. 1, 2021

Re: Pharo Graphs

by Richard O'Keefe

Brilliant! Ta muchly. On Thu, 2 Dec 2021 at 03:56, Sebastian Jordan Montano < sebastian.jordan(a)inria.fr> wrote: > Hello everybody, > > We are happy to announce that we have a brand new library for graphs > algorithms in Pharo! We have implemented some of the most-know graph > algorithms like: Dijkstra, Tarjan, BFS, Kruskal, Topological Sort, and more. > Here is the GitHub repository: > https://github.com/pharo-ai/graph-algorithms > > Also, we wrote a booklet for the ones interested in graph theory in the > computer science context. In the booklet, we explain how the algorithms > work, the logic behind them, and the Pharo implementation. Also, we show in > which real-life scenarios they can be applied. > Here is the booklet link: > https://github.com/SquareBracketAssociates/Booklet-PharoGraphs (there is > the link of pdf on the README). > > We are interested in any kind of feedback! > > Thanks, > Sebastian Jordan >

Dec. 1, 2021

Pharo Graphs

by Sebastian Jordan Montano

Hello everybody, We are happy to announce that we have a brand new library for graphs algorithms in Pharo! We have implemented some of the most-know graph algorithms like: Dijkstra, Tarjan, BFS, Kruskal, Topological Sort, and more. Here is the GitHub repository: [ https://github.com/pharo-ai/graph-algorithms | https://github.com/pharo-ai/graph-algorithms ] Also, we wrote a booklet for the ones interested in graph theory in the computer science context. In the booklet, we explain how the algorithms work, the logic behind them, and the Pharo implementation. Also, we show in which real-life scenarios they can be applied. Here is the booklet link: [ https://github.com/SquareBracketAssociates/Booklet-PharoGraphs | https://github.com/SquareBracketAssociates/Booklet-PharoGraphs ] (there is the link of pdf on the README). We are interested in any kind of feedback! Thanks, Sebastian Jordan

Dec. 1, 2021

[ANN] reprex-it

by HernÃ¡n Morales Durand

Hi all, I released reprex-it, an evaluator of Pharo code to formatted expressions, useful for sharing evaluated scripts on Github or Discord for example, or Microdown/Pillar books. Check the usage demo at the repository at https://github.com/hernanmd/reprex-it Please let me know what you think, what's missing, ideas or any comments. Also don't hesitate to open issues [1] if you experience some trouble. Enjoy! HernÃ¡n

Nov. 30, 2021

Re: [ANN] DataFrame Inspector

by HernÃ¡n Morales Durand

Hi Guille, El lun, 29 nov 2021 a las 9:49, Guillermo Polito (<guillermopolito(a)gmail.com>) escribiÃ³: > Ahhh super nice!! thanks for sharing :) > > Is it by default in polymath? > Good idea :) I opened an issue https://github.com/PolyMathOrg/PolyMath/issues/225 > > How do you decide what to plot in the inspector pane? Or you by default > always use histograms on every numerical column? > > Exactly, only numeric columns get histograms. HernÃ¡n > G > > El 27 nov 2021, a las 17:23, HernÃ¡n Morales Durand < > hernan.morales(a)gmail.com> escribiÃ³: > > Hi everyone, > > I am glad to announce the first release of Data Inspector, a Pharo > inspector extension to operate and view DataFrame multiple information in a > same inspector view > > https://github.com/pharo-ai/data-inspector > > You may find installation instructions, features list, and example usage > demo in the GitHub documentation README. > > Please let us know what you think, what's missing, ideas or any comments. > Also don't hesitate to open issues [1] if you experience some trouble. > > Cheers! > > HernÃ¡n > > [1] https://github.com/pharo-ai/data-inspector/issues > > >

Nov. 29, 2021

Re: uFFI provide buffer to C

by Gerry Weaver

Hi Guillermo, Ah ok. I didnât realize that I could only have a single statement. I got it working now. Thanks to you and everyone that helped me out. Thanks, Gerry Gerry Weaver (800) 318-6118 From: Guillermo Polito <guillermopolito(a)gmail.com> Sent: Monday, November 29, 2021 3:11 AM To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> Subject: [Pharo-users] Re: uFFI provide buffer to C Hi Gerry, I think the point of Tomaz is that an FFI method can only have a single #ffiCall: statement. In your example, what you can do is to split your method in two methods: First a method with the mapping (following the idea of Tomaz but using libc) FFITutorial>>getHostNameInto: hostName ofLenght: length ^self ffiCall: #( int gethostname(char *hostName, int length) ) library: 'libc.so.6'. And then have a second method that calls this one: FFITutorial>>getHostName | nameBuffer | nameBuffer := ByteArray new: 256. self getHostNameInto: nameBuffer ofLenght: 256. ^nameBuffer asString Notice that converting the byte array buffer to string will only work by chance if the called function returns characters encoded in ascii. In Pharo strings are Unicode characters where each character is a unicode code-point. The best thing is to read the documentation of the library and check the encoding of the string that is put in the buffer to decode it accordingly, for example from utf8. G El 29 nov 2021, a las 0:56, Gerry Weaver <gerryw(a)compvia.com<mailto:gerryw@compvia.com>> escribiÃ³: Hi, Thanks for the example. Unfortunately, it doesn't work on Linux. Thanks, Gerry ________________________________ From: TomaÅ¾ Turk <tomaz.turk(a)ef.uni-lj.si<mailto:tomaz.turk@ef.uni-lj.si>> Sent: Sunday, November 28, 2021 11:39 AM To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org<mailto:pharo-users@lists.pharo.org>> Subject: [Pharo-users] Re: uFFI provide buffer to C Hi, try with this: FFITutorial>>getHostNameInto: hostName ofLenght: length ^self ffiCall: #( int gethostname(char *hostName, int length) ) library: 'Ws2_32.dll'. "... on Windows" >From Playground, you can then do: | name len | len := 50. name:= ByteArray new: len. FFITutorial new getHostNameInto: name ofLenght: len. name inspect. I hope this helps. Best wishes, Tomaz

Nov. 29, 2021