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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Extra resources for Exploring Everyday Things with R and Ruby: Discover the World Around You Through Programming

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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.

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