Rubyではじめる野球データ分析(なおPython) #tqrk11

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   RubyͰ͸͡ΊΔ ໺ٿσʔλ෼ੳ Shinichi Nakagawa(Retty.Inc/໺ٿͷਓ) TokyuRubyձٞ11 2017/7/29 #tqrk11 ʙPythonΛఴ͑ͯʙ

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   ਖ਼૷ = ໺ٿϢχϑΥʔϜʂ ※ࣸਅ෇͖ͰγΣΞ͓ئ͍͠·͢ʂ

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   Who am I ?(͓લ୭Α) • Pythonք۾ͷʮ໺ٿͷਓʯͰ͢ • Shinichi Nakagawa(@shinyorke) •

   Retty.Inc Engineering Manager
 ݉,ڕྉཧ୲౰ • Baseball Scientist/໺ٿσʔλ෼ੳऀ • #Python #SABRmetrics #໺ٿ౷ܭֶ #Agile #Scrum
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   ʲCMʳRetty #ͱ͸ • Recommend + Happy = Retty • ࣗ෼ʹͽͬͨΓͳ͓ళʹग़ձ͏


   ໊࣮ܕޱίϛαʔϏε • ͓͔͛͞·Ͱ3000ສϢʔβʔ/݄ಥഁ
 ͋Γ͕ͱ͏͍͟͝·͢m(_ _)m • ϓϩάϥϛϯάݴޠ • PHP(Web) • Java/Kotlin/Scala(API/Backend) • Python(Web/Backend/Data Science) • Ruby͸,͑ʔʔͬͱ…͋ͬ(࡯͠
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   ຊ೔ͷΠΠΰϋϯ

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   https://retty.me/area/PRE13/ARE13/SUB1302/100001296432/

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   ຊ೔ͷʮΠΠΰϋϯʯ • RettyࣾһΦεεϝʮࠇໟ࿨ڇηοτʯ • ʮࠇໟ࿨ڇʹ͓͔͠ʯຑ෍े൪ຊళ • ʮ࿨ڇϝϯνΧπʯʮβϒτϯห౰ʯ • ೑ͱ૬ੑൈ܈೔ຊञʮࠇڇʯ΋߹Θͤͯʂ

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   (৯ͨ͠ํ͸)ਗ਼͖ҰථΛʂ m(_ _)m

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   ຊ೔ͷʮ͓͠ͳ͕͖ʯ • զࢥ͏ʮRubyͱPythonʯ • PyDataͬΆ͘RubyΛ͞ΘΔ • ʲσϞʳJupyterͰRuby VS Python
 ಉ͡໺ٿσʔλ෼ੳΛͯ͠Έͨ

   • ·ͱΊ
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    ਲͬ෷ͬͯΔͷͰ Ή͔͍ͣ͠ϋφγ͸ ͸͠ΐΓ·͢(͜ͳΈ)

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    զࢥ͏ʮRubyͱPythonʯ • Ruby • ͏͐ͬͿͷݴޠ • Ruby On Rails͕ͭΑ͍(͜ͳΈ) •

    Python • ʮPyDataʯͱ͍͏ݴ༿͕͋Δ͘Β͍,σʔλͷݴޠ • Jupyter notebook,pandasͱ͔ϥΠϒϥϦ͕ἧ͍ਿ಺
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    PyDataͬΆ͍͜ͱΛ RubyͰ΍ͬͯΈΔ͜ͱ͸ Ͱ͖Δͷ͔ͳ?(͗΋Μ)

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    PyDataͬΆ͘RubyΛ͞ΘΔ • Jupyter notebookͰRubyΛಈ͔͢ • pandas΍matplotlibʹ୅ΘΔϞϊΛ
 RubyͰ୳ͯ͠΍ͬͯΈΔ
 
 ˞؀ڥ࡞Γɾํ๏͸ޙ೔ϒϩάͰʂ

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    ຊ೔ͷ໺ٿσʔλ෼ੳ • ϝονϟڧ͍޿ౡͱ,ࠓ೥͸͋ͬ(࡯͠)ͳ೔ϋϜ,
 ଧઢͷҖྗͷҧ͍Λ௚ײతʹ෼ੳ&ՄࢹԽ • ෼ੳσʔλ(MySQL)ʹΫΤϦΛୟ͍ͯαϚͬͯάϥϑΛඳ͘ • ࢦඪͱͯ͠ʮwRAA(ଧܸߩݙ౓)ʯΛ࢖༻
 ཧ࿦͸ϝνϟΫνϟΉ͔͍ͣ͠ͷͰ͜͜Ͱ͸লུ •

    ͳ͓,෼ੳͱࢦඪܭࢉ͸PythonΛ࢖ͬͨ໛༷m(_ _)m
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    ݁Ռ͸ͪ͜Β(αϯϓϧίʔυ) • wRAA෼ੳ(Ruby)
 https://gist.github.com/Shinichi-Nakagawa/ 0c41baeee95a725c0523a58452a3981e • wRAA෼ੳ(Python)
 https://gist.github.com/Shinichi-Nakagawa/ 75e32da5f3b0aca6b13904c0dc7ec481 •

    εΩʔϚͷҙຯͳͲ͸ͳΜͱͳ͘࡯͍ͯͩ͘͠͞w
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    ·ͱΊ • ͦΒʢRubyͰ΋Pythonͱ΄΅ಉ͜͡ͱ͕Ͱ͖ͯʣ
 ͦ͏ʢ޿ౡ͸ؙ͕ͯ͘͢͝೔ϋϜ͸੢઒ͱϨΞʔυҎ֎ΞϨʹʣ
 Αɹʢܾ·͍ͬͯΔ͡Όͳ͍͔ʣ • ຊ೔ͷ෼ੳఔ౓ͳΒRubyͰશવOK(໺ٿʹݶΒͣ) • ͱ͸͍͑Jupyter notebook͸௒༏लͳͷͰ͓֮͑ͯ͘ͱ˕

    • ؾʹͳͬͨํ͸ͥͻҰॹʹJupyterͰRubyಈ͔͠·͠ΐ͏ʂ
 (ͦͷ৔ͰϋϯζΦϯͯ͠΋͍͍Α) • Ͱ΋σʔλ෼ੳ͸΍ͬͺΓPythonͰʂ(Җѹײ)
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    ήʔϜηοτʂʂʂ ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠&Ruby࠷ߴʂ Shinichi Nakagawa(Twitter/Facebook/hatena:@shinyorke)