ESUG 2017 - IWST 2017

1. Towards Exploratory
Data Analysis for Pharo
Oleksandr Zaytsev
Nick Papoulias, Serge Stinckwich

2. PolyMath
• Started in 2012
• Pure Pharo library for doing math computation (similar to
SciPy)
• 3 GSOC students (2012, 2013, 2017)
• MIT Licence, last stable version 0.89, 838 green tests, 200
classes
• Channel on Pharo Discord, mailing-list
• https://github.com/PolyMathOrg/PolyMath
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3. Main packages
• Matrix, Statistics moments, Polynomials, Interpolations,
Integration, Series, Linear Algebra (DHB)
• Ordinary Differential Equations Solver (RK4, AB2, …)
• Complex numbers, Quaternions
• Random Number Generators
• KD-Trees
• Arbitrary Floating-point arithmetics
• Dataframes (as in R or Python)
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4. Main contributors
• Daniel Uber (first version of SciSmalltalk) - GSOC 2012 Student
• Natalia Tymchuck (ODE) - GSOC 2013 Student
• Olekskandr Zaytsev (Dataframe package) - GSOC 2017 Student
• Didier H. Besset (DHB packages)
• Nicolas Cellier (arbitrary floating point arithmetics)
• Stéphane Ducasse (Refactorings, packaging, documentation)
• Werner Kassens (KDETree)
• HwaJong Oh (combinaisons/permutations)
• Serge Stinckwich (documentation, integration)
• Hernán Morales Durand (Random Number Generator)
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5. Dataframe Video
https://youtu.be/
9ouFGU8b8gk