Call about Numerical Methods in Pharo :)

De : Pharo-dev [mailto:[hidden email]] De la part de Alexandre Bergel
Envoyé : mardi 8 mars 2016 20:23
À : Any question about pharo is welcome
Cc : Didier Besset; Souissi Sami; Pharo Development List
Objet : Re: [Pharo-dev] [Pharo-users] Call about Numerical Methods in Pharo :)

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Alexandre Bergel  http://www.bergel.eu
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On Mar 3, 2016, at 6:43 AM, Blondeau Vincent <[hidden email]> wrote:

 

Hi,

That's a very good idea.
For now, I use a Pharo-R binding to make the statistics, but it is better if it is directly in the image.

For my part, it should be nice to have:
- Principal Component Analysis
- Time series
- Correlation with several variables (Correlation matrix) + significance tests (pearson, spearman...)
- Standard statistical tests: normality, variance, mean, distribution
- And the more important is to have nice tools to visualize the data (Box plot, histogram, scatterplots, PCA ones) with a simple API for standard things but that we can customize. The best is that we are able to draw regression lines on them. But I think that is more a Roassal part.

Thanks for the initiative,

Cheers,
Vincent

-----Message d'origine-----
De : Pharo-users [[hidden email]] De la part de
stepharo
Envoyé : mercredi 2 mars 2016 14:17
À : Pharo Development List; Any question about pharo is welcome; Didier
Besset; Souissi Sami
Objet : [Pharo-users] Call about Numerical Methods in Pharo :)

Hi guys

I met Didier Besset and we had a great hacking session and discussions with
Serge Stinckwich.
Didier would like to help Pharo and the numerical part of it. ***Big
thanks*** Didier.

We would like to do several things:

    - Work on "Hows to"
      The numerical methods in Pharo is good but the gap between us and the
math is too large :)
     so the idea is to have a series of "how to ..."
            - histomgram (simple, based on distribution)

    - Improve the SciPharo/NumPha (previously SciSmalltalk) library
    This morning we started to implement a
ComponentPrincipalDecomposition by combining two of the
    objects available in SciPharo.
        Then we started to enhance the distributions to make sure that we can
plug other distribution for having
        controlled random number.

    - Do a public call to know what is missing for you: this is this mail :)
    Didier would like to work on concrete cases. I love that attitude
    So tell us :)

            Hernan ??
            Alex: ?? pvalue? better distribution?
            Vincent: covariance? CPA?
            Philippe: times series
            Serge R frames?
            Sami: Better random number and various distributions?

    - Organise a two day lectures with practices on concrete case in September
with a recording session.
    Either at IRD Bondy or Lille.

    - Make sure that the Numerical Method book will get on lulu :) with a
better cover and title :)


Stef

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