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 [mailto:pharo-users-bounces@lists.pharo.org] De la part de
stepharo
Envoy�� : mercredi 2 mars 2016 14:17
�� : 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
!!!*************************************************************************************
"Ce message et les pi��ces jointes sont confidentiels et r��serv��s �� l'usage exclusif de ses destinataires. Il peut ��galement ��tre prot��g�� par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir imm��diatement l'exp��diteur et de le d��truire. L'int��grit�� du message ne pouvant ��tre assur��e sur Internet, la responsabilit�� de Worldline ne pourra ��tre recherch��e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'exp��diteur ne donne aucune garantie �� cet ��gard et sa responsabilit�� ne saurait ��tre recherch��e pour tout dommage r��sultant d'un virus transmis.
This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted.!!!"