By Sau Sheong Chang
If you're inquisitive about how issues paintings, this enjoyable and exciting advisor may help you discover actual solutions to daily difficulties. by utilizing basic math and doing basic programming with the Ruby and R languages, you'll how you can version an issue and paintings towards a solution.
All you wish is a uncomplicated knowing of programming. After a brief creation to Ruby and R, you'll discover a variety of questions by way of studying the right way to gather, approach, simulate, and research the to be had facts. You'll discover ways to see daily issues in a distinct standpoint via basic courses and customary experience common sense. when you end this booklet, you can start your personal trip of exploration and discovery.
Here are a number of the questions you'll explore:
*Determine what percentage restroom stalls can accommodate an workplace with 70 employees
*Mine your e-mail to appreciate your specific emailing habits
*Use easy audio and video recording units to calculate your middle rate
*Create a synthetic society—and examine its behavioral styles to benefit how particular components impact our genuine society
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Praise for layout styles in Ruby
"Design styles in Ruby files clever how you can get to the bottom of many difficulties that Ruby builders in general stumble upon. Russ Olsen has performed a superb activity of choosing vintage styles and augmenting those with more recent styles that experience detailed relevance for Ruby. He in actual fact explains each one concept, creating a wealth of expertise to be had to Ruby builders for his or her personal day-by-day paintings. "
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"This ebook presents a very good demonstration of the major 'Gang of Four' layout styles with out resorting to overly technical causes. Written in an exact, but virtually casual sort, this publication covers sufficient flooring that even these with no past publicity to layout styles will quickly consider convinced utilising them utilizing Ruby. Olsen has performed a very good task to make a booklet a few classically 'dry' topic into such an interesting or even sometimes funny learn. "
"This booklet renewed my curiosity in knowing styles after a decade of fine intentions. Russ picked the main worthwhile styles for Ruby and brought them in a simple and logical demeanour, going past the GoF's styles. This ebook has stronger my use of Ruby, and inspired me to blow off the dirt protecting the GoF e-book. "
"Design styles in Ruby is a brilliant means for programmers from statically typed objectoriented languages to profit how layout styles seem in a extra dynamic, versatile language like Ruby. "
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Most layout trend books are in accordance with C++ and Java. yet Ruby is different—and the language's exact traits make layout styles more straightforward to enforce and use. during this publication, Russ Olsen demonstrates how you can mix Ruby's energy and style with styles, and write extra subtle, potent software program with a long way fewer strains of code.
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Design styles in Ruby additionally identifies leading edge new styles that experience emerged from the Ruby neighborhood. those comprise how one can create customized gadgets with metaprogramming, in addition to the formidable Rails-based "Convention Over Configuration" development, designed to assist combine whole functions and frameworks.
Engaging, sensible, and available, layout styles in Ruby might help you construct larger software program whereas making your Ruby programming adventure extra rewarding.
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Extra resources for Exploring Everyday Things with R and Ruby: Discover the World Around You Through Programming
Then the app needs to transform the collected image in various ways to detect something within it. ‰ Microphone: Analyzing audio recordings involves signal-processing algorithms. Chapter 14 describes algorithms for volume detection and frequency estimation. ‰ Speech recognition: Executing voice commands involves matching what the user said with command words using text search methods. Chapter 17 describes methods to improve matching success. Applications in This Book This book presents applications that utilize sensors for speciﬁc purposes.
Indd 19 5/11/2012 9:36:09 AM Milette c02 V2 - 03/21/2012 Page 20 20 x CHAPTER 2 DETERMINING A DEVICE’S CURRENT LOCATION speciﬁes the name of the location provider that was either enabled or disabled. The String provider name can be matched to the static constants in LocationManager to determine which provider had its state changed. getProviders(), which can be used to initially register providers that are currently enabled and dynamically add or remove more providers as they are enabled or disabled when onProviderEnabled() or onProviderDisabled() is called.
The force_time_injection command causes the current time to be retrieved from the conﬁgured NTP server and updated for the purposes of GPS calculations. indd 7 5/10/2012 1:05:28 PM 8 x CHAPTER 1 INTRODUCING THE ANDROID LOCATION SERVICE The force_extra_injection command causes the A-GPS data to be downloaded from one of the conﬁgured servers and used by the GPS location provider. Network Provider In Android, network-based location can use different methods for determining the location of a device.