Exploring Everyday Things with R and Ruby. Learning About Everyday Things - Helion

ebook

Autor: Sau Sheong Chang
ISBN: 978-14-493-4221-0
stron: 252, Format: ebook
Data wydania: 2012-06-27
Księgarnia: Helion

Cena książki: 92,65 zł (poprzednio: 107,73 zł)
Oszczędzasz: 14% (-15,08 zł)

Osoby, które kupiły tę książkę, wybierały także »

If you’re curious about how things work, this fun and intriguing guide will help you find real answers to everyday problems. By using fundamental math and doing simple programming with the Ruby and R languages, you’ll learn how to model a problem and work toward a solution.

All you need is a basic understanding of programming. After a quick introduction to Ruby and R, you’ll explore a wide range of questions by learning how to assemble, process, simulate, and analyze the available data. You’ll learn to see everyday things in a different perspective through simple programs and common sense logic. Once you finish this book, you can begin your own journey of exploration and discovery.

Here are some of the questions you’ll explore:

Determine how many restroom stalls can accommodate an office with 70 employees
Mine your email to understand your particular emailing habits
Use simple audio and video recording devices to calculate your heart rate
Create an artificial society—and analyze its behavioral patterns to learn how specific factors affect our real society

Osoby które kupowały "Exploring Everyday Things with R and Ruby. Learning About Everyday Things", wybierały także:

Windows Media Center. Domowe centrum rozrywki 66,67 zł, (8,00 zł -88%)
Ruby on Rails. Ćwiczenia 18,75 zł, (3,00 zł -84%)
DevOps w praktyce. Kurs video. Jenkins, Ansible, Terraform i Docker 190,00 zł, (39,90 zł -79%)
Przywództwo w świecie VUCA. Jak być skutecznym liderem w niepewnym środowisku 58,64 zł, (12,90 zł -78%)
Scrum. O zwinnym zarządzaniu projektami. Wydanie II rozszerzone 58,64 zł, (12,90 zł -78%)

Spis treści

Exploring Everyday Things with R and Ruby. Learning About Everyday Things eBook -- spis treści

Exploring Everyday Things with R and Ruby
SPECIAL OFFER: Upgrade this ebook with OReilly
Preface
- Explorers Ahoy!
- Data, Data, Everywhere
- Bringing the World to Us
- Packing Your Bags
- Conventions Used in This Book
- Using Code Examples
- Safari Books Online
- How to Contact Us
- Acknowledgments
1. The Hat and the Whip
- Ruby
  - Why Ruby
  - Installing Ruby
    - Installing Ruby from source
    - Installing Ruby using third-party tools
      - Ruby Version Manager (RVM)
      - RubyInstaller
    - Installing Ruby using your platforms package management tool
  - Running Ruby
  - Requiring External Libraries
  - Basic Ruby
    - Strings
    - Arrays and hashes
    - Symbols
    - Conditionals and loops
      - if and unless
      - case expression
      - Loops
  - Everything Is an Object
    - Classes and objects
    - Methods
    - Class methods and variables
    - Inheritance
    - Code like a duck
- Shoes
  - What Is Shoes?
  - A Rainbow of Shoes
  - Installing Shoes
  - Programming Shoes
    - Shoes stopwatch
    - Shoes doodler
- Wrap-up
2. Into the Matrix
- Introducing R
- Using R
  - The R Console
  - Sourcing Files and the Command Line
  - Packages
    - Installing packages
    - Using packages
- Programming R
  - Variables and Functions
  - Conditionals and Loops
  - Data Structures
    - Vectors
    - Lists
    - Matrices
    - Arrays
    - Factors
    - Data frames
  - Importing Data
    - Importing data from text files
    - Importing data from a database
- Charting
  - Basic Graphs
    - Plotting charts
  - Introducing ggplot2
    - qplot
    - Using the grammar
    - Plot
    - Aesthetics
    - Statistical transformation
    - Geometric object
    - Adjustments
- Wrap-up
3. Offices and Restrooms
- The Simple Scenario
- Representing Restrooms and Such
- The First Simulation
- Interpreting the Data
- The Second Simulation
- The Third Simulation
- The Final Simulation
- Wrap-up
4. How to Be an Armchair Economist
- The Invisible Hand
- A Simple Market Economy
  - The Producer
  - The Consumer
  - Some Convenience Methods
  - The Simulation
  - Analyzing the Simulation
- Resource Allocation by Price
  - The Producer
  - The Consumer
  - Market
  - The Simulation
  - Analyzing the Second Simulation
  - Price Controls
- Wrap-up
5. Discover Yourself Through Email
- The Idea
- Grab and Parse
  - The Emailing Habits of Enron Executives
- Discover Yourself
  - Number of Messages by Day of the Month
  - MailMiner
  - Number of Messages by Day of Week
  - Number of Messages by Month
  - Number of Messages by Hour of the Day
  - Interactions
  - Comparative Interactions
- Text Mining
- Wrap-up
6. In a Heartbeat
- My Beating Heart
- Auscultation
  - Homemade Digital Stethoscope
  - Extracting Data from Sound
  - Generating the Heart Sounds Waveform
  - Finding the Heart Rate
- Oximetry
  - Homemade Pulse Oximeter
  - Extracting Data from Video
  - Generating the Heartbeat Waveform and Calculating the Heart Rate
- Wrap-up
7. Schooling Fish and Flocking Birds
- The Origin of Boids
- Simulation
- Roids
- The Boid Flocking Rules
- Supporting Rules
- A Variation on the Rules
- Going Round and Round
- Putting in Obstacles
- Wrap-up
8. Money, Sex, and Evolution
- Its a Good Life
- Money
- Sex
  - Birth and Death
  - The Changes
- Evolution
  - What We Will Be Changing
  - Implementation
- Wrap-up
Index
About the Author
Colophon
SPECIAL OFFER: Upgrade this ebook with OReilly
Copyright