{"product_id":"9780134464435","title":"Data Visualization Toolkit: Using JavaScript, Rails, and Postgres to Present Data and Geospatial Information","description":"\u003cp\u003e \u003cb\u003eCreate Beautiful Visualizations that Free Your Data to Tell Powerful Truths\u003c\/b\u003e \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cblockquote\u003e \u003cp\u003e\u003ci\u003e \u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e“The depth of Barrett Clark’s knowledge shines through in his writing: clear, concise, and confident. Barrett has been practicing all of this stuff in his day job for many years–Postgres, D3, GIS, all of it. The knowledge in this book is real-world and hard-earned!”\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e–From the Foreword by Obie Fernandez \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e \u003cp\u003e \u003ci\u003e \u003cb\u003eData Visualization Toolkit\u003c\/b\u003e \u003c\/i\u003e is your hands-on, practical, and holistic guide to the art of visualizing data. You’ll learn how to use Rails, jQuery, D3, Leaflet, PostgreSQL, and PostGIS together, creating beautiful visualizations and maps that give your data a voice and to make it “dance.”\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eBarrett Clark teaches through real-world problems and examples developed specifically to illuminate every technique you need to generate stunningly effective visualizations. You’ll move from the absolute basics toward deep dives, mastering diverse visualizations and discovering when to use each. Along the way, you’ll build three start-to-finish visualization applications, using actual real estate, weather, and travel datasets.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eClark addresses every component of data visualization: your data, database, application server, visualization libraries, and more. He explains data transformations; presents expert techniques in JavaScript, Ruby, and SQL; and illuminates key concepts associated with both descriptive statistics and geospatial data. Throughout, everything is aimed at one goal: to help you cut through the clutter and let your data tell all it can.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThis guide will help you\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cul\u003e \u003cli\u003eExplore and understand the data visualization technology stack\u003c\/li\u003e \u003cli\u003eMaster the thought process and steps involved in importing data\u003c\/li\u003e \u003cli\u003eExtract, transform, and load data in usable, reliable form\u003c\/li\u003e \u003cli\u003eHandle spotty data, or data that doesn’t line up with what your chart expects\u003c\/li\u003e \u003cli\u003eUse D3 to build pie and bar charts, scatter and box plots, and more\u003c\/li\u003e \u003cli\u003eWork effectively with time-series data\u003c\/li\u003e \u003cli\u003eTweak Ruby and SQL to optimize performance with large datasets\u003c\/li\u003e \u003cli\u003eUse raw SQL in Rails: window functions, subqueries, and common table expressions\u003c\/li\u003e \u003cli\u003eBuild chord diagrams and time-series aggregates\u003c\/li\u003e \u003cli\u003eUse separate databases or schema for reporting databases\u003c\/li\u003e \u003cli\u003eIntegrate geographical data via geospatial SQL queries\u003c\/li\u003e \u003cli\u003eConstruct maps with Leaflet and Rails\u003c\/li\u003e \u003cli\u003eQuery geospatial data the “Rails way” and the “raw SQL way”\u003c\/li\u003e \u003c\/ul\u003e","brand":"Addison-Wesley","offers":[{"title":"Default Title","offer_id":47022506279152,"sku":"9780134464435","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9780134464435_p0.jpg?v=1763642175","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780134464435","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}