[Moose-dev] Re: Frequency distribution and histograms

could try to reproduce some examples from chapter 3. Maybe we can join our effort and reproduce the examples as a Pillar chapter somewhere ?

Le 27/6/15 12:40, Serge Stinckwich a écrit : Good job Pierre ! I was looking exactly to the same document recently and thought that I could try to reproduce some examples from chapter 3. Yes I pass it to alex because pierre will visit us and I propose to enhance the statistical part as well build on top of NeoCSV to improve data collection. Maybe we can join our effort and reproduce the examples as a Pillar chapter somewhere ? Serge the histogram objects (not the drawer) should be packaged in SciSmalltalk. Stef Regards, On Sat, Jun 27, 2015 at 12:16 AM, Pierre CHANSON <chans.pierre(a)gmail.com&gt; wrote: > Hola todos, > > These days I am working on compete with R. I am taking the datasets and > examples from > http://cran.r-project.org/doc/contrib/Zhao_R_and_data_mining.pdf and > make it with Roassal even better ! Or almost... ;) > > First chapter first pages, the histograms... In Roassal they were not > working so well. > > So lately I restructured the RTDistribution package. This, by default > make a classical frequency distribution, with an optimized number of > classes. The method #strategyBlock: allows to change the strategy for the > distribution. > > I also worked on the RTHistogramSet and method #histogram of > SequenceableCollection to improve a bit the looking. There is still here > some work to do but at least the histogram works well and looks fine. > > We worked with Alejandro on the algorithm of frequency distribution to > make it efficient compared to the classic one (Only one iteration on datas > during the algo itself). > > Here are some examples, don't hesitate to try a bit and give me > feedbacks if any bugs, so I can move on the next graphs ;) > > #(5 3 8 6 5 4 2 9 1 2) histogram. > > #(1 2 3) histogram. > > #(555 1 1 2) histogram. > > ((1 to: 1000) collect: [:i | i atRandom ]) histogram. > > > > ​ > Also, I found this page and thought it was really nice animations !! > http://bost.ocks.org/mike/algorithms/ > > cheers, > > Pierre > > > > _______________________________________________ > Moose-dev mailing list > Moose-dev(a)iam.unibe.ch > https://www.iam.unibe.ch/mailman/listinfo/moose-dev > > -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/ _______________________________________________ Moose-dev mailing listMoose-dev@iam.unibe.chhttps://www.iam.unibe.ch/mailman/listinfo/moose-dev _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev