November 2014 - Pharo-users

Re: [Pharo-users] Anyone having a Rserve client?

by Thierry Goubier

2014-11-10 11:10 GMT+01:00 phil(a)highoctane.be <phil(a)highoctane.be>: > Cool. > > I was thinking or reusing pieces of the RFBClient for writing the client. > I like its design. > > I will work on this end of the month and in december so that I can ship my > code using it in January. > I'm very busy until the end of november; after it doesn't look much better :(, but it fits in a current project. > > I have a case on hand, so it is easy to have a user centric focus. > My use case is bio-stats. With matrixes which are too large for R on a server with 768 GB of RAM :( > > I created a blank repo for the project: > https://github.com/philippeback/parsec > > Parsec: Pharo RServe Client. > Ok. > > (I will give a shot at AltBrowser for coding this one :-) ) > On which pharo will you be? 3 or 4? As I'm mostly coding for apps and projects at the moment, I tend to be on 3 (and loose sight of eventual bugs on 4). Thierry > > Phil > > > On Mon, Nov 10, 2014 at 10:48 AM, Thierry Goubier < > thierry.goubier(a)gmail.com> wrote: > >> Hi Phil, >> >> I'm interested too. I could commit resources to help if needed. >> >> Thierry >> >> 2014-11-10 10:28 GMT+01:00 phil(a)highoctane.be <phil(a)highoctane.be>: >> >>> I am doing some R work and wanted to integrate with Pharo. >>> >>> Is there any support for Rserve around? >>> >>> http://www.rforge.net/Rserve/dev.html >>> >>> At this point I am doing OProcess style stuff with littler but Rserve >>> would be cooler. >>> >>> There are binding for Ruby and Python. >>> >>> e.g. >>> http://pythonhosted.org//pyRserve/ >>> https://github.com/ralhei/pyRserve >>> >>> Stats are becoming bigger and bigger and the leader of the pack is R. >>> >>> DHB is fine and I do use some of it but let's face it, it is nowhere >>> near the power of R... >>> >>> >>> Phil >>> >> >> >

Nov. 10, 2014

Re: [Pharo-users] Anyone having a Rserve client?

by stepharo

I know that vincent did a binding to connect to R. On 10/11/14 10:28, phil(a)highoctane.be wrote: > I am doing some R work and wanted to integrate with Pharo. > > Is there any support for Rserve around? > > http://www.rforge.net/Rserve/dev.html > > At this point I am doing OProcess style stuff with littler but Rserve > would be cooler. > > There are binding for Ruby and Python. > > e.g. > http://pythonhosted.org//pyRserve/ > https://github.com/ralhei/pyRserve > > Stats are becoming bigger and bigger and the leader of the pack is R. > > DHB is fine and I do use some of it but let's face it, it is nowhere > near the power of R... > > > Phil

Nov. 10, 2014

Re: [Pharo-users] Anyone having a Rserve client?

by phil＠highoctane.be

Cool. I was thinking or reusing pieces of the RFBClient for writing the client. I like its design. I will work on this end of the month and in december so that I can ship my code using it in January. I have a case on hand, so it is easy to have a user centric focus. I created a blank repo for the project: https://github.com/philippeback/parsec Parsec: Pharo RServe Client. (I will give a shot at AltBrowser for coding this one :-) ) Phil On Mon, Nov 10, 2014 at 10:48 AM, Thierry Goubier <thierry.goubier(a)gmail.com > wrote: > Hi Phil, > > I'm interested too. I could commit resources to help if needed. > > Thierry > > 2014-11-10 10:28 GMT+01:00 phil(a)highoctane.be <phil(a)highoctane.be>: > >> I am doing some R work and wanted to integrate with Pharo. >> >> Is there any support for Rserve around? >> >> http://www.rforge.net/Rserve/dev.html >> >> At this point I am doing OProcess style stuff with littler but Rserve >> would be cooler. >> >> There are binding for Ruby and Python. >> >> e.g. >> http://pythonhosted.org//pyRserve/ >> https://github.com/ralhei/pyRserve >> >> Stats are becoming bigger and bigger and the leader of the pack is R. >> >> DHB is fine and I do use some of it but let's face it, it is nowhere near >> the power of R... >> >> >> Phil >> > >

Nov. 10, 2014

Re: [Pharo-users] Anyone having a Rserve client?

by Thierry Goubier

Hi Phil, I'm interested too. I could commit resources to help if needed. Thierry 2014-11-10 10:28 GMT+01:00 phil(a)highoctane.be <phil(a)highoctane.be>: > I am doing some R work and wanted to integrate with Pharo. > > Is there any support for Rserve around? > > http://www.rforge.net/Rserve/dev.html > > At this point I am doing OProcess style stuff with littler but Rserve > would be cooler. > > There are binding for Ruby and Python. > > e.g. > http://pythonhosted.org//pyRserve/ > https://github.com/ralhei/pyRserve > > Stats are becoming bigger and bigger and the leader of the pack is R. > > DHB is fine and I do use some of it but let's face it, it is nowhere near > the power of R... > > > Phil >

Nov. 10, 2014

Anyone having a Rserve client?

by phil＠highoctane.be

I am doing some R work and wanted to integrate with Pharo. Is there any support for Rserve around? http://www.rforge.net/Rserve/dev.html At this point I am doing OProcess style stuff with littler but Rserve would be cooler. There are binding for Ruby and Python. e.g. http://pythonhosted.org//pyRserve/ https://github.com/ralhei/pyRserve Stats are becoming bigger and bigger and the leader of the pack is R. DHB is fine and I do use some of it but let's face it, it is nowhere near the power of R... Phil

Nov. 10, 2014

Re: [Pharo-users] question on syntax "negate numbers"

by Thierry Goubier

2014-11-10 8:47 GMT+01:00 Henrik Johansen <henrik.s.johansen(a)veloxit.no>: > 3 @ -5 is not a problem, and accepted by both. > 3 @ - <space> 5 is what I object to (and Opal allows) > RBParser allows this one even if old Compiler dissallows it (i.e. in Pharo 2). I haven't tracked if Opal follows the RBParser on that or if this is the reverse (Opal pushed changes on RBParser). I suspect all things RB in Pharo (and Squeak?) are a port from the Dolphin version of RB, which means this is allowed in quite a few other smalltalks (Dolphin?, VW?). I haven't checked if the SmaCC Smalltalk parser accept that. Note: 4 - 5 in RBParser does what you would expect. 4 - - 5 as well. > 3 @-5 and/or 3 @- 5 is (rightly) disallowed by both. > That one is easier and expected. My position would be twofold: - RBParser is, IMHO, a good parser and I would follow its interpretation. That Opal reuses it is a good point for me. - As a programming language designer (and parser implementor), accepting - 5 is user friendly, but a bit too contextual in the lexer to be nice to implement. Thierry > > Cheers, > Henry >

Nov. 10, 2014

Re: [Pharo-users] question on syntax "negate numbers"

by Henrik Johansen

> On 10 Nov 2014, at 8:45 , Thierry Goubier <thierry.goubier(a)gmail.com> wrote: > > > > 2014-11-10 7:59 GMT+01:00 Henrik Johansen <henrik.s.johansen(a)veloxit.no <mailto:henrik.s.johansen@veloxit.no>>: > > IMHO, the old compiler is right, whitespace should not be allowed in literals. > > Whitespace can be \t or \n,\r which makes for strange literals (multilines) such as: > > - > > 5 > > And would create ambiguity in some cases > > is 4 - 5 two literals, or is it two literals separated by the - operator ? > > For instance, 3 @ - 5 reads like gibberish. > > But is 3 @ -5 a problem or not ? Why is the old compiler accepting -3 @ 5, and not 3 @ -5 ? 3 @ -5 is not a problem, and accepted by both. 3 @ - <space> 5 is what I object to (and Opal allows) 3 @-5 and/or 3 @- 5 is (rightly) disallowed by both. Cheers, Henry

Nov. 10, 2014

Re: [Pharo-users] question on syntax "negate numbers"

by Thierry Goubier

2014-11-10 7:59 GMT+01:00 Henrik Johansen <henrik.s.johansen(a)veloxit.no>: > > IMHO, the old compiler is right, whitespace should not be allowed in > literals. > Whitespace can be \t or \n,\r which makes for strange literals (multilines) such as: - 5 And would create ambiguity in some cases is 4 - 5 two literals, or is it two literals separated by the - operator ? For instance, 3 @ - 5 reads like gibberish. > But is 3 @ -5 a problem or not ? Why is the old compiler accepting -3 @ 5, and not 3 @ -5 ? Thierry > > Cheers, > Henry >

Nov. 10, 2014

Re: [Pharo-users] question on syntax "negate numbers"

by Henrik Johansen

> On 08 Nov 2014, at 5:55 , Werner Kassens <wkassens(a)libello.com> wrote: > > but if you omit the space between - and 3 the old compiler understands it too, hence its just a convenience thing that cant lead to misunderstandings, or? > btw opal also understands this: > - 3@2. --> (-3@2) > i mean, its obvious nevertheless that "-" is not a method like negated, but part of a number and opal is just a bit more flexible with number formatting. > werner > > On 11/08/2014 04:40 PM, Nicolai Hess wrote: >> Old compiler refuses to accept this code: >> >> - 4 @ -5 >> ^-- nothing more expected >> >> Opal compiler does just fine: >> >> - 4 @ -5 -> (-4@ -5) >> >> who is right? > IMHO, the old compiler is right, whitespace should not be allowed in literals. For instance, 3 @ - 5 reads like gibberish. Cheers, Henry

Nov. 10, 2014

[Survey] Reasoning about objects

by Andrei Chis

Hi all, In order to improve object inspectors we are doing a survey. We want to know whether several features are important to you or not when trying to understand objects. This is a very short survey and should't take you more than 10 minutes to complete. Please take this time to participate. Here is the link to the survey: http://goo.gl/forms/xKPxqLxJJv Cheers, Andrei

Nov. 10, 2014