- Pharo-users - lists.pharo.org

Re: [Pharo-users] Video presentation of Rewrite Tool

by stepharo

Mark this is really excellent! I really want to use it. I had 30 classes with changing API. I did it by hand :( Stef > Hi, > > Video presentation of Rewrite Tool: http://screencast.com/t/LCEl0hFl > Also on blog: http://myfuncoding.blogspot.com/ > > Please, I need your feedback on tool, so download it and try to use it. > Any suggestions or questions are welcome! > > Best, > Mark > > > > -- > View this message in context: http://forum.world.st/Video-presentation-of-Rewrite-Tool-tp4806789.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > >

Feb. 21, 2015

Re: [Pharo-users] [Pharo-dev] GSOC 2015 Call for Ideas

by stepharo

Indeed these are nice to have, now they will not magically happen :) There is a 400 pages book on SciTalk. Stef Le 19/2/15 09:36, Andrea Ferretti a Ã©crit : > Hi Serge, > > as I said I do not really have the time now to get involved in a gsoc > proposal, but I can give you my perspective. There are two sides to > the story. > > The first one is complementary to SciSmalltalk: in order to analize > data, you need to get data in first. So, one may want to read - say - > a CSV, and have a number of heuristics, such as: > > - autodetection of encoding > - autodetection of quotes and delimiter > - autodetection of columns containing numbers or dates > - the possibility to indicate that some markers, such as "N/A", > represent missing values > - the possibility to indicate a replacement for missing values, such > as 0, or "", or the average or the minimum of the other values in the > colums > > See http://pandas.pydata.org/pandas-docs/version/0.15.2/io.html#csv-text-files > for some examples. > > It may be worth to consider making this into a sequence that is read > and processed lazily, to deal with CSV files bigger than memory. > > When data is finally in, usually the first task is doing some > processing, inspection or visualization. The Smalltalk collections are > good for processing (although some lazy variants might help), and > Roassal and the inspectors are perfect for visualization and browsing. > > The second part comes the time when one wants to run some algorithm. > While there is no need to have the fanciest ones, there should be some > of the basics, such as: > > - some form or regression (linear, logistic...) > - some form of clustering (kmeans, dbscan, canopy...) > - SVM > > Another thing which would be useful is support for linear algebra, > leveraging native libraries such as BLAS or LAPACK. > > In short: just copying R, or numpy + pandas + scikit-learn would > already be a giant leap forward. > > Actually, some of the things I have mentioned above are already (I > think) in SciSmalltalk, which brings me to the next point: > documentation. There is really no point in having all these tools if > people do not know they are there. > > For this to become useful, there should be a dedicated site, > highlighting what is already available, in what state (experimental, > partial, stable...) and how to use it. > > Ideally, I would include also some tutorials, for instance for dealing > with standard problems such as Kaggle competitions. Here I think > Smalltalk would have an edge, since these tutorial could be in the > form of Prof Stef. Still, it would be nice if some form of the > tutorials was also on the web, which makes it discoverable. > > Best, > Andrea > > 2015-02-18 11:14 GMT+01:00 Serge Stinckwich <serge.stinckwich(a)gmail.com>: >> On Wed, Feb 18, 2015 at 11:01 AM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >>> OK, try making a proposal then, http://gsoc.pharo.org has the instructions and the current list, you probably know more about data science than I do. >>> >>>> On 18 Feb 2015, at 10:53, Andrea Ferretti <ferrettiandrea(a)gmail.com> wrote: >>>> >>>> I am sorry if the previous messages came off as too harsh. The Neo >>>> tools are perfectly fine for their intended use. >>>> >>>> What I was trying to say is that a good idea for a SoC project would >>>> be to develop a framework for data analysis that would be useful for >>>> data scientists, and in particular this would include something to >>>> import unstructured data more freely. >> Sorry Andrea. I didn't see you message because I'm not pharo-users >> mailing-list, only on pharo-dev. >> I'm also really interested to have a gsoc project to develop data >> analysis framework. >> Please let's talk together in order to discuss about a proposal. >> >> Regards, >> -- >> Serge Stinckwich >> UCBN & UMI UMMISCO 209 (IRD/UPMC) >> Every DSL ends up being Smalltalk >> http://www.doesnotunderstand.org/ >> >

Feb. 21, 2015

Git (gitfiletree) on Pharo vs Windows

by Jan B.

Hello We are moving our project from smalltalkhub to github. Gitfiletree seems to be working as expected on linux, but there are some of us (well, me) who would like to contribute from Windows, but I am unable to make it working (which is, of course, also "as expected" :) ). What do I have: Windows 7 64bit Pharo 4 (#40496) Pharo VM for win, tried both stable (371 from 2014-09-25) and latest (410 from 2015-02-17) git version 1.9.5.msysgit.0 What did I try: 1) using Git for Windows from http://git-scm.com/downloads 2) cloning our project into ~/Pharo/repo (this created folder structure ~/Pharo/repo/dynacase/repository where all package folders are, along with .git folder in ~Pharo/repo/dynacase 3) downloading clean Pharo 4 platform 4) running from playground (tried both MetaRepoForPharo40 and 30): Gofer new url: 'http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo40/main'; configurationOf: 'GitFileTree'; loadDevelopment. 5) this step I tried only once in few tries: updating all OSProcess and CommandShell packages to latest commits 6) adding repository to Monticello, selected gitfiletree://, selected folder ~/Pharo/repo/dynacase/repository , OK Result was being swamped by exceptions every time. When I did step 5, I got different exceptions and, also, windows command line has opened (but "empty", ie. like if I opened it myself in folder with Pharo.exe and left like that) Only thing that worked for me was adding this local repository as regular filetree (not gitfiletree), commiting there, and than commiting same thing once again with git via command line (or git bash). I would like to ask for help with making it work somehow better. Here are saved images from moments when I confirmed adding gitfiletree repository with those mentioned exceptions and errors: https://www.mediafire.com/folder/879qs8srf5ice/PharoGitConfigs (30 = using MetaRepoForPharo30, 40 = using MetaRepoForPharo40, latest = using MetaRepoForPharo40 + loading latest packages) Thank you Jan BlizniÄenko -- View this message in context: http://forum.world.st/Git-gitfiletree-on-Pharo-vs-Windows-tp4806791.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Feb. 21, 2015

Video presentation of Rewrite Tool

by Mark Rizun

Hi, Video presentation of Rewrite Tool: http://screencast.com/t/LCEl0hFl Also on blog: http://myfuncoding.blogspot.com/ Please, I need your feedback on tool, so download it and try to use it. Any suggestions or questions are welcome! Best, Mark -- View this message in context: http://forum.world.st/Video-presentation-of-Rewrite-Tool-tp4806789.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Feb. 21, 2015

Re: [Pharo-users] Pharo 4 - current state?

by kilon alios

Can you rephrase that Stef ? I dont understand what you trying to say. On Sat, Feb 21, 2015 at 2:02 PM, stepharo <stepharo(a)free.fr> wrote: > Cool > Videos are really important. > Kilon just one little feedback, pay attention to get something moving fast > on the screen. > > Stef > > Le 20/2/15 19:46, kilon alios a Ã©crit : > > I made a video tutorial about it here > > > https://www.youtube.com/watch?v=mNh6VtPy8m4&list=PLqbtQ7OkSta0ULYAd7Qdxof85… > > Well Pharo 4 comes with GT tools a new inspector and a new workspace. I > am also a huge fan of the new Dark Theme. > > Using Pharo makes you feel like Neo from The Matrix , you look at the > screen , realise the power of live coding and you say "WOW" > > https://www.youtube.com/watch?v=qjBRNqwDPrU > > Sure Pharo is far from perfect , it comes with its own kind of annoyances > but I think its so beautifully unique its hard to resist. > > On Fri, Feb 20, 2015 at 8:10 PM, sergio_101 <sergio.rrd(a)gmail.com> wrote: > >> okay, you've got me to switch.. anyway.. it's not that big deal to fire >> up pharo 3 with the same codebase.. >> >> i think i saw GTSpotter on a screencast somewhere.. i will go look for >> it.. >> >> when you mention the other nice things, where can i find them? where >> should i look? >> >> my day time development team (ruby and objective-c) is working on a >> side project during lunch presentations, and then on our own time. it will >> be a commercial product, and we're doing it in seaside.. .hopefully this >> will generate 6 new converts into the fold. it is kind of confusing for >> everyone at first.. but during our meetings, things get cleared up and >> people are getting a good handle on all of it... >> >> to the point that during regular work, i am starting to hear "i wish we >> (ruby ecosystem) had (insert ST goodness) here.." >> >> On Fri Feb 20 2015 at 12:07:03 PM kilon alios <kilon.alios(a)gmail.com> >> wrote: >> >>> I work with Pharo 4 and no longer use Pharo 3, its very stable I have >>> not experienced any kind of problem with it except one with autocompletion >>> when I was hacking Pharo themes for my Nirreas project. >>> >>> Definetly recommend it to you to switch just for GTSpotter alone and >>> many other new nice things. >>> >>> There million ways to help, you can a) bug fix c) document d) make your >>> own tools and share them with the rest of us e) introduce pharo to other >>> people so we can grow as a community and the list goes on and on. >>> >>> I only spend a hour a day with Pharo but is my happiest hour :) >>> >>> On Fri, Feb 20, 2015 at 6:13 PM, sergio_101 <sergio.rrd(a)gmail.com> >>> wrote: >>> >>>> Hey, all. >>>> >>>> I had an hour last night to start playing with pharo 4. >>>> >>>> in the hour that played with it, there are already features i miss >>>> when going back to pharo 3 for getting work done. >>>> >>>> my questions is, how close is pharo 4 to be useable in a day to day >>>> environment? >>>> >>>> can i use it as a part of my regular development? >>>> >>>> what can i do to help move everything along? >>>> >>>> thanks! >>>> >>> >>> > >

Feb. 21, 2015

Re: [Pharo-users] Pharo 4 - current state?

by stepharo

Cool Videos are really important. Kilon just one little feedback, pay attention to get something moving fast on the screen. Stef Le 20/2/15 19:46, kilon alios a Ã©crit : > I made a video tutorial about it here > > https://www.youtube.com/watch?v=mNh6VtPy8m4&list=PLqbtQ7OkSta0ULYAd7Qdxof85… > > Well Pharo 4 comes with GT tools a new inspector and a new workspace. > I am also a huge fan of the new Dark Theme. > > Using Pharo makes you feel like Neo from The Matrix , you look at the > screen , realise the power of live coding and you say "WOW" > > https://www.youtube.com/watch?v=qjBRNqwDPrU > > Sure Pharo is far from perfect , it comes with its own kind of > annoyances but I think its so beautifully unique its hard to resist. > > On Fri, Feb 20, 2015 at 8:10 PM, sergio_101 <sergio.rrd(a)gmail.com > <mailto:sergio.rrd@gmail.com>> wrote: > > okay, you've got me to switch.. anyway.. it's not that big deal to > fire up pharo 3 with the same codebase.. > > i think i saw GTSpotter on a screencast somewhere.. i will go look > for it.. > > when you mention the other nice things, where can i find them? > where should i look? > > my day time development team (ruby and objective-c) is working on > a side project during lunch presentations, and then on our own > time. it will be a commercial product, and we're doing it in > seaside.. .hopefully this will generate 6 new converts into the > fold. it is kind of confusing for everyone at first.. but during > our meetings, things get cleared up and people are getting a good > handle on all of it... > > to the point that during regular work, i am starting to hear "i > wish we (ruby ecosystem) had (insert ST goodness) here.." > > On Fri Feb 20 2015 at 12:07:03 PM kilon alios > <kilon.alios(a)gmail.com <mailto:kilon.alios@gmail.com>> wrote: > > I work with Pharo 4 and no longer use Pharo 3, its very stable > I have not experienced any kind of problem with it except one > with autocompletion when I was hacking Pharo themes for my > Nirreas project. > > Definetly recommend it to you to switch just for GTSpotter > alone and many other new nice things. > > There million ways to help, you can a) bug fix c) document d) > make your own tools and share them with the rest of us e) > introduce pharo to other people so we can grow as a community > and the list goes on and on. > > I only spend a hour a day with Pharo but is my happiest hour :) > > On Fri, Feb 20, 2015 at 6:13 PM, sergio_101 > <sergio.rrd(a)gmail.com <mailto:sergio.rrd@gmail.com>> wrote: > > Hey, all. > > I had an hour last night to start playing with pharo 4. > > in the hour that played with it, there are already > features i miss when going back to pharo 3 for getting > work done. > > my questions is, how close is pharo 4 to be useable in a > day to day environment? > > can i use it as a part of my regular development? > > what can i do to help move everything along? > > thanks! > > >

Feb. 21, 2015

Re: [Pharo-users] Any static web site generators for pharo with bootstrap support?

by stepharo

I would love that too and I was brainstorming on extending Pillar (wrapping its components into page, menu, section.... But no time to really start it. Stef Le 21/2/15 01:46, Offray Vladimir Luna CÃ¡rdenas a Ã©crit : > Hi all, > > I'm planning to make a web site. Nothing fancy, just a web site for > the grafoscopio project I have told you about already. I started to > use Nikola blog engine[1], but, after a while I thought I want to try > something else, something that can create static web sites like > Nikola, but with more interactive feedback and made in Smalltalk. I > have found Bootstrap for Seaside [2], but I don't want the "Seaside" > part in the sense that I don't want to create any behaviour served by > Seaside or configure any server for that matter, just to put some > Smalltalk code that produces static html powered by boostrap and put > it under distributed source control management, like I do now with my > blog. There is something like that in Pharo/Smalltalk or any approach > you suggest me to make it happen fluidly? > > [1] http://getnikola.com/ > [2] http://smalltalkhub.com/#!/~TorstenBergmann/Bootstrap > > Thanks, > > Offray > >

Feb. 21, 2015

Re: [Pharo-users] Canvas: Transform Width and Height Independently

by stepharo

Sean Could you write a little doc on what you learned? I would love to read it. Stef Le 21/2/15 04:50, Sean P. DeNigris a Ã©crit : > Sean P. DeNigris wrote >> That worked > But actually, it was totally unnecessary! MorphicTransform's scaling method > arguments were either named (unhelpfully) 's' or (misleadingly) 'aFloat', > but apparently, I can just pass aPoint to scale x and y separately :) > > So I'm back to the simple version... > drawOn: aCanvas > > | transform widthScale heightScale | > widthScale := self innerBounds width / self image width. > heightScale := self innerBounds height / self image height. > transform := MorphicTransform new withScale: widthScale@heightScale. > aCanvas warpImage: self image transform: transform at: self innerBounds > origin > > Thanks for talking me through it! I learned a lot... > > > > ----- > Cheers, > Sean > -- > View this message in context: http://forum.world.st/Canvas-Transform-Width-and-Height-Independently-tp480… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Feb. 21, 2015

Re: [Pharo-users] Canvas: Transform Width and Height Independently

by stepharo

Le 21/2/15 05:23, Sean P. DeNigris a Ã©crit : > Sean P. DeNigris wrote >> MorphicTransform's scaling method arguments were either named >> (unhelpfully) 's' or (misleadingly) 'aFloat' > > Issue 14971 MorphicTransform: Better Argument Names > Fix in inbox... > Scale: "s" -> aNumberOrPoint > Angle: "a" -> radians > Offset: a -> aPoint wonderful! Stef > > > > ----- > Cheers, > Sean > -- > View this message in context: http://forum.world.st/Canvas-Transform-Width-and-Height-Independently-tp480… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Feb. 21, 2015

Re: [Pharo-users] Canvas: Transform Width and Height Independently

by Nicolai Hess

2015-02-21 4:50 GMT+01:00 Sean P. DeNigris <sean(a)clipperadams.com>: > Sean P. DeNigris wrote > > That worked > > But actually, it was totally unnecessary! MorphicTransform's scaling method > arguments were either named (unhelpfully) 's' or (misleadingly) 'aFloat', > but apparently, I can just pass aPoint to scale x and y separately :) > Good to know! BTW I found a bug in isPureTranslation: (MorphicTransform offset:10@10 angle:0 degreesToRadians scale:1) isPureTranslation -> true (MorphicTransform offset:10@10 angle:0 degreesToRadians scale:1@1) isPureTranslation -> false > > So I'm back to the simple version... > drawOn: aCanvas > > | transform widthScale heightScale | > widthScale := self innerBounds width / self image width. > heightScale := self innerBounds height / self image height. > transform := MorphicTransform new withScale: > widthScale@heightScale. > aCanvas warpImage: self image transform: transform at: self > innerBounds > origin > > Thanks for talking me through it! I learned a lot... > > > > ----- > Cheers, > Sean > -- > View this message in context: > http://forum.world.st/Canvas-Transform-Width-and-Height-Independently-tp480… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Feb. 21, 2015