Charty with Rails - Speaker Deck

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Charty with Rails RailsConf 2019 LT Kazuma Furuhashi @284km

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Hello! •My name is Kazuma •I’m from Japan

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I’m from Asakusa.rb

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No content

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Nice to meet you • Kazuma Furuhashi • GitHub: @284km • Asakusa.rb • Programmer • ruby/csv • red-data-tools/charty

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Nice to meet you • Kazuma Furuhashi • GitHub: @284km • Asakusa.rb • Programmer • ruby/csv • red-data-tools/charty Write Code

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Nice to meet you • ruby/csv • I made it 1.5x - 3x faster • red-data-tools/charty • I will introduce! Write Code

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I will not talk about csv today. ( Details here ) https://slide.rabbit-shocker.org/ authors/kou/rubykaigi-2019/

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red-data-tools/ Charty

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Charty is … open-source Ruby library for visualization.

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Charty is convinient

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For example, there is data as below…

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That's all codes we need to write !

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Visualize as below …

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Visualize as below …

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Visualize as below

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Visualize as below

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About Charty

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Charty has two abstraction layers • Data Abstraction Layer • Plotting Abstraction Layer

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Abstraction Layer We can do what you want in a combination of diﬀerent languages, data structures, and libraries.

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Data Abstraction Layer • Daru::DataFrame • Numo::NArray • NMatrix • ActiveRecord

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Plotting Abstraction Layer • Matplotlib • Gruﬀ • rubyplot • chart.js (Experimental implementation) • 284km/benchmark_driver-output-charty

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Charty with Rails application

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Charty with Rails application

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284km/benchmark_driver-output-charty $ be benchmark-driver examples/parse.yaml -o charty

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Future Plans • Data Abstraction Layer • Support Red::Arrow • Improve benchmark_driver-output-charty • Plotting Abstraction Layer • Add type of graph that can be output • Support bokeh ? maybe. • More convenient

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Write code, Have fun! • Charty is an open-source Ruby library for visualizing your data in a simple way. • https://github.com/red-data-tools/charty