Create Beautiful Visualizations that Free Your Data to Tell Powerful Truths “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!” –From the Foreword by Obie Fernandez Data Visualization Toolkit 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.” Barrett 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. Clark 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. This guide will help you <ul>
<li>Explore and understand the data visualization technology stack</li> <li>Master the thought process and steps involved in importing data</li> <li>Extract, transform, and load data in usable, reliable form</li> <li>Handle spotty data, or data that doesn’t line up with what your chart expects</li> <li>Use D3 to build pie and bar charts, scatter and box plots, and more</li> <li>Work effectively with time-series data</li> <li>Tweak Ruby and SQL to optimize performance with large datasets</li> <li>Use raw SQL in Rails: window functions, subqueries, and common table expressions</li> <li>Build chord diagrams and time-series aggregates</li> <li>Use separate databases or schema for reporting databases</li> <li>Integrate geographical data via geospatial SQL queries</li> <li>Construct maps with Leaflet and Rails</li> <li>Query geospatial data the “Rails way” and the “raw SQL way”</li> </ul>

Data Visualization Toolkit: Using Javascript, Rails, and Postgres to Present Data and Geospatial Information (Addison-wesley Professional Ruby Series)

Computers & Technology

Clark, Barrett

Programming Languages

Addison-Wesley Professional

At last: everything you need to explore the the intriguing villages of America's most historic river in depth-and save money as you go! The introductory audio tape shows and tells you just how much there is to see and do in the Heart of the Hudson! Travel through Sleepy Hollow, Ossining, Croton, Cortlandt and Peekskill (North Tour) or Tarrytown, Irvington, Dobbs Ferry, Hastings, and Yonkers (South Tour) in 30-45 minutes in the comfort of your own car. You'll hear about the history, famous citizens, attractions and special secrets of each town along the way and discover that they all offer compelling reasons for a longer visit. Music of famous local composers and river sounds will make these river towns come alive for you in a dramatic and exciting way. This 304-page guide gives you complete access & upclose tours of all ten historic river towns! After the tape tour, you decide which towns you want to see close up. There is a tour chapter for each town, with map and key to all major attractions, restaurants, shops and accommodations. The tours are detailed driving & walking trips to unique points of interest, and provide insight into the towns' special relationship with the river. They include things to see and do which will add to your appreciation and enjoyment, plus a highlight tour if time is short. The guide also contains an accommodations chapter and a chapter with strip maps and introduction to the audio tape tour. After just a few pages, you'll feel truly at home in the Heart of the Hudson. This membership card saves you money at the best places in town! In each river town, you'll receive offers, bargains and introductions-a special welcome to you as a preferred Heart of the Hudson Member. Show your card and mention it when making reservations or visiting points of interest. Offers range from special hotel rates, to free drinks & desserts & main courses in restaurants, to gift with purchase in shops, to a free admission with each paid admission at major attractions. The kit contains a brochure listing all offers by town. You'll know in advance why a trip to the Historic River Towns of Westchester represents a great value in several important ways!

Heart of the Hudson Travel Discovery Kit

Travel

Vincent, Thomas M.

Vincent,Michael S.

United States

Marketing a LA Carte

European Theories of the Drama

Crown, Publishers

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