Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
研鑽Rubyプログラミング読書会
Search
Hirokazu SUZUKI
November 17, 2023
90
1
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
研鑽Rubyプログラミング読書会
研鑽Rubyプログラミング7章の関連資料です。
Hirokazu SUZUKI
November 17, 2023
More Decks by Hirokazu SUZUKI
See All by Hirokazu SUZUKI
冒険の続き ~ RedAmber ~ A DataFrame Library in Ruby
heronshoes
0
730
すごい広島.rb with Python[74] Hirokazu SUZUKI
heronshoes
0
130
The Adventure of RedAmber - A data frame library in Ruby
heronshoes
0
3.9k
Featured
See All Featured
Raft: Consensus for Rubyists
vanstee
142
7.7k
Intergalactic Javascript Robots from Outer Space
tanoku
273
27k
How Fast Is Fast Enough? [PerfNow 2025]
tammyeverts
3
920
My Coaching Mixtape
mlcsv
0
340
Git: the NoSQL Database
bkeepers
PRO
433
67k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
50
10k
AI: The stuff that nobody shows you
jnunemaker
PRO
10
1.1k
The Hidden Cost of Media on the Web [PixelPalooza 2025]
tammyeverts
2
510
SEO for Brand Visibility & Recognition
aleyda
0
4.8k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
21
1.7k
The Pragmatic Product Professional
lauravandoore
37
7.5k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
28
3.7k
Transcript
7.3 7.3.1 - メソッドの数が多い - 単純 - 柔軟性は低い 7.3.2 -
メソッドの数が少ない - 複雑 - 柔軟性は高い a.inner_join(b, key) a.full_join(b, key) a.left_join(b, key) etc. 実装は、#joinを呼んでいる 拙作 RedAmberでは、こんな例がある データフレーム同士を結合するメソッド群で、両方とも使っている(他言語の流儀に合わせるため) a.join(b, key, type: :inner_join) :typeは、:inner, :fullなど結合のタイプを指定する ソース: https://github.com/red-data-tools/red_amber/blob/main/lib/red_amber/data_frame_combinable.rb #joinの実装は、Red ArrowのTable#joinを呼びながら データフレーム独自の仕様に基づいて色々やっている
https://gist.github.com/heronshoes/d301bfd58adfbf51e28584bf2e68c190
RedAmber Features RedAmber (Ruby) Tidyverse (R) pandas (Python) DataFrames.jl (Julia)
一致した行だけを連結 (内部結合) inner_join, join dplyr::inner_join merge innerjoin 全ての行を連結 (外部結合) full_join, outer_join, join dplyr::full_join merge outerjoin 左の一致した値を残して連結 (左外部結合) left_join, join dplyr::left_join merge leftjoin 右の一致した値を残して連結 (右外部結合) right_join, join dplyr::right_join merge rightjoin 左の行のうち、右と一致したものを残す semi_join, join dplyr::semi_join [isin] semijoin 左の行のうち、右と一致しなかったもの を残す anti_join, join dplyr::anti_join [isin] antijoin 左右どちらかにある行を残す(和) union dplyr::union merge 左右両方にある行を残す(積) intersect dplyr::intersect merge 左にはあるが右にない行を残す(差) difference, setdiff dplyr::setdiff merge https://github.com/red-data-tools/red_amber/blob/main/doc/DataFrame_Comparison_ja.md