- Pharo-users - lists.pharo.org

Re: [Pharo-users] Some random musings

by Julien

Hello, Then this should be added to Integer class as well no? So the API is uniform. Because, if I am not wrong, for now if you want to generate an integer that could be negative you have to use an Interval (-10 to: 10) atRandom Since 10 atRandom In fact generates a Natural number and not an Integerâ¦ :-) Julien --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, Avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 > Le 16 avr. 2018 Ã 12:51, Sven Van Caekenberghe <sven(a)stfx.eu> a Ã©crit : > > I think > > Float randomFrom: -4.1 to: 2.5 > > or > > Float randomBetween: -4.1 and: 2.5 > > would be the most descriptive and compliant to your signature ;-) > > An interval does not necessarily contain Floats. > Going to the class side of Float makes sense because you create a new instance. > >> On 16 Apr 2018, at 11:51, Serge Stinckwich <serge.stinckwich(a)gmail.com> wrote: >> >> Hi Pharoers, >> >> some random musings about Random numbers :-) >> >> In the context of the CORMAS project: >> http://cormas.cirad.fr/indexeng.htm >> I would like to propose an API for manipulating random numbers >> to users who are not developers but modelers of complex systems. >> >> In CORMAS, people need to generate a lot of random numbers for simulation for exemple. For example, you can do: >> >> Cormas randomFloatFrom: -4.1 to: 2.5 >> >> âAt the moment, there is no Pharo API to generate with a one-liner a random float number between two values for example. >> >> You can do this for integers: 10 atRandom to generate an integer between 1 to 10. >> >> There is atRandom defined on Interval, so can you say : >> (2.3 to: 4.5) atRandom >> but it will not generate a random float numbers between 2.3 and 4.5 >> >> but numbers like: 2.3, 3.3 or 4.3. >> because Interval are considered as a Collection. >> >> âAny comments about that ? >> How we can enhance the situation ?â >> Any interest to introduce a method to produce random float numbers in an interval in Pharo ? >> >> âThank youâ >> -- >> Serge Stinckwich >> UMI UMMISCO 209 (SU/IRD/UY1) >> "Programs must be written for people to read, and only incidentally for machines to execute." >> http://www.doesnotunderstand.org/ > >

April 16, 2018

Re: [Pharo-users] Some random musings

by Sven Van Caekenberghe

I think Float randomFrom: -4.1 to: 2.5 or Float randomBetween: -4.1 and: 2.5 would be the most descriptive and compliant to your signature ;-) An interval does not necessarily contain Floats. Going to the class side of Float makes sense because you create a new instance. > On 16 Apr 2018, at 11:51, Serge Stinckwich <serge.stinckwich(a)gmail.com> wrote: > > Hi Pharoers, > > some random musings about Random numbers :-) > > In the context of the CORMAS project: > http://cormas.cirad.fr/indexeng.htm > I would like to propose an API for manipulating random numbers > to users who are not developers but modelers of complex systems. > > In CORMAS, people need to generate a lot of random numbers for simulation for exemple. For example, you can do: > > Cormas randomFloatFrom: -4.1 to: 2.5 > > âAt the moment, there is no Pharo API to generate with a one-liner a random float number between two values for example. > > You can do this for integers: 10 atRandom to generate an integer between 1 to 10. > > There is atRandom defined on Interval, so can you say : > (2.3 to: 4.5) atRandom > but it will not generate a random float numbers between 2.3 and 4.5 > > but numbers like: 2.3, 3.3 or 4.3. > because Interval are considered as a Collection. > > âAny comments about that ? > How we can enhance the situation ?â > Any interest to introduce a method to produce random float numbers in an interval in Pharo ? > > âThank youâ > -- > Serge Stinckwich > UMI UMMISCO 209 (SU/IRD/UY1) > "Programs must be written for people to read, and only incidentally for machines to execute." > http://www.doesnotunderstand.org/

April 16, 2018

Re: [Pharo-users] Pharo Launcher

by Ben Coman

On 16 April 2018 at 16:55, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: >> Downloaded it. Installed it. Started it. Selected an image. Bam. The >> app vanished. > > As I've mentioned in several other threads, the way new images are opened > (the lib that executes the command) seems to be very unreliable and > sometimes opening image just doesn't work, and I have to open PL again and > try again. > > My guess is that there's a race condition and PL closes faster, and before > the subprocess manages to be disowned. I untick the box "Quit on Launch" cheers -ben

April 16, 2018

Some random musings

by Serge Stinckwich

Hi Pharoers, some random musings about Random numbers :-) In the context of the CORMAS project: http://cormas.cirad.fr/indexeng.htm I would like to propose an API for manipulating random numbers to users who are not developers but modelers of complex systems. In CORMAS, people need to generate a lot of random numbers for simulation for exemple. For example, you can do: Cormas randomFloatFrom: -4.1 to: 2.5 âAt the moment, there is no Pharo API to generate with a one-liner a random float number between two values for example. You can do this for integers: 10 atRandom to generate an integer between 1 to 10. There is atRandom defined on Interval, so can you say : (2.3 to: 4.5) atRandom but it will not generate a random float numbers between 2.3 and 4.5 but numbers like: 2.3, 3.3 or 4.3. because Interval are considered as a Collection. âAny comments about that ? How we can enhance the situation ?â Any interest to introduce a method to produce random float numbers in an interval in Pharo ? âThank youâ -- Serge Stinckwich UMI UMMISCO 209 (SU/IRD/UY1) "Programs must be written for people to read, and only incidentally for machines to execute."http://www.doesnotunderstand.org/

April 16, 2018

Re: [Pharo-users] Recover question at startup

by tesonep＠gmail.com

Hi Cyril, I have taken your mail and added to the issue. Thanks On Mon, Apr 16, 2018 at 11:35 AM, Cyril Ferlicot D. < cyril.ferlicot(a)gmail.com> wrote: > On 16/04/2018 11:30, tesonep(a)gmail.com wrote: > > I have created an Issue > > (https://pharo.fogbugz.com/f/cases/21708/Epicea-should-not- > offer-to-recover-changes-if-the-ombu-file-does-not-exists) > > to follow the conversation and to notify MartÃn and listen to his > opinion. > > > > Hi, > > Indeed it would be cool to not show the recover window when there is no > ombu file. It was something I already raised in this message: > > http://forum.world.st/Problems-with-Epicea-on-Pharo-7-td5069768.html > > > Cheers, > > Pablo > > > > -- > > Pablo Tesone. > > tesonep(a)gmail.com <mailto:tesonep@gmail.com> > > > -- > Cyril Ferlicot > https://ferlicot.fr > > -- Pablo Tesone. tesonep(a)gmail.com

April 16, 2018

Re: [Pharo-users] Recover question at startup

by Cyril Ferlicot D.

On 16/04/2018 11:30, tesonep(a)gmail.com wrote: > I have created an Issue > (https://pharo.fogbugz.com/f/cases/21708/Epicea-should-not-offer-to-recover-…) > to follow the conversation and to notify MartÃn and listen to his opinion. > Hi, Indeed it would be cool to not show the recover window when there is no ombu file. It was something I already raised in this message: http://forum.world.st/Problems-with-Epicea-on-Pharo-7-td5069768.html > Cheers, > Pablo > > -- > Pablo Tesone. > tesonep(a)gmail.com <mailto:tesonep@gmail.com> -- Cyril Ferlicot https://ferlicot.fr

April 16, 2018

Re: [Pharo-users] Recover question at startup

by tesonep＠gmail.com

I have created an Issue ( https://pharo.fogbugz.com/f/cases/21708/Epicea-should-not-offer-to-recover-… ) to follow the conversation and to notify MartÃn and listen to his opinion. Cheers, Pablo On Sun, Apr 15, 2018 at 7:02 AM, Ben Coman <btc(a)openinworld.com> wrote: > On Sat, Apr 14, 2018 at 5:56 PM, Hilaire <hilaire(a)drgeo.eu> wrote: >> >>> Replying to myself for the record, these two lines seem to inactivate >>> Epicea >>> >>> "Inactivate Epicea" >>> EpSettings monitorEnabled: false. >>> EpSettings lostEventsDetectorEnabled: false. >>> >>> >>> Now, there is still likely an issue I don't understand >> >> > > On 15 April 2018 at 00:32, tesonep(a)gmail.com <tesonep(a)gmail.com> wrote: > >> Hi, >> I have been checking this problem and the message is shown because is >> trying to find the ombu file for the current session. >> Usually what it does is comparing the file with the recorded size and >> timestamp in the image to check that the file has no new changes. >> If the file is newer or larger than the previous info of the image, the >> recover message appears. >> >> I think there is a bug here, although I am not sure, I think that MartÃn >> has to help to understand it. >> Because in the current implementation if the file does not exists it >> produces the recovery message. >> Even though it can show that there are changes, if there is no file with >> them I think is quite difficult to recover them. >> >> This behaviour is not happening in the machine where the image is built, >> because the file exists in the disk. They are stored in the pharo-local >> directory. >> >> Cheers, >> Pablo >> > > > I didn't have a chance to check for repeat-ability, but yesterday I > saved-quit and Image-A, > then in PharoLauncher did a Copy of Image-A to image-B, > then opening Image-B got a question about Recovery that I didn't expect or > want. > > cheers -ben > -- Pablo Tesone. tesonep(a)gmail.com

April 16, 2018

Re: [Pharo-users] In P7 scrpt variable to tmp when in debugger

by Marcus Denker

> On 12 Apr 2018, at 17:18, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > > >> On 12 Apr 2018, at 17:06, Hilaire <hilaire(a)drgeo.eu> wrote: >> >> Hi Marcus, Benoit, >> >> Nice to know. I was testing in a set up with both .changes and source files. So I was suspecting something like what your described. I can imagine in production code your feature to speed up compilation will be appreciated. For Dr. Geo and Smalltalk sketch, it is better to have variable names. >> > > I should have a fix ready tomorrow. > I will for now revert the change: https://github.com/pharo-project/pharo/pull/1199 <https://github.com/pharo-project/pharo/pull/1199> This way it behaves as people expect, I have an idea how to provide an option for the faster way. This will come next. Marcus

April 16, 2018

Re: [Pharo-users] Pharo Launcher

by Peter UhnÃ¡k

> Downloaded it. Installed it. Started it. Selected an image. Bam. The app vanished. As I've mentioned in several other threads, the way new images are opened (the lib that executes the command) seems to be very unreliable and sometimes opening image just doesn't work, and I have to open PL again and try again. My guess is that there's a race condition and PL closes faster, and before the subprocess manages to be disowned. Peter On Mon, Apr 16, 2018 at 3:39 AM, Ben Coman <btc(a)openinworld.com> wrote: > On 16 April 2018 at 06:02, Benoit St-Jean <bstjean(a)yahoo.com> wrote: > > "What path did you install to?" > > > > > > The installer put it in: > > > > C:\Users\BenoÃ®t St-Jean\AppData\Local\Programs\Pharo\BCPharoLauncher> > > To work around the special character in your path, try copying that > whole folder to C:\BCPharoLauncher > and directly double-click Pharo.exe. Then click the Settings tool > icon and change the Image & VM paths. > > Hopefully that will get you going for now, until we sort out a proper fix. > > cheers -ben > >

April 16, 2018

Re: [Pharo-users] Pharo Launcher

by Ben Coman

On 16 April 2018 at 06:02, Benoit St-Jean <bstjean(a)yahoo.com> wrote: > "What path did you install to?" > > > The installer put it in: > > C:\Users\BenoÃ®t St-Jean\AppData\Local\Programs\Pharo\BCPharoLauncher> To work around the special character in your path, try copying that whole folder to C:\BCPharoLauncher and directly double-click Pharo.exe. Then click the Settings tool icon and change the Image & VM paths. Hopefully that will get you going for now, until we sort out a proper fix. cheers -ben

April 16, 2018