Ebook: Ruby data processing using map, reduce, and select

Intro; Table of Contents; About the Author; About the Technical Reviewer; Acknowledgments; Introduction; Prerequisites; Chapter 1: Basic Ruby; The Command Line; Object Scope; String; Array; Special Methods; Hash; Block-passing Syntax; Reading from Files; Chapter 2: Function Overview and Simple Examples; Map; Reduce; Simple Reduce Examples; uniq; reverse; max; Select; Chapter 3: Complex Solutions; Debugging Blocks for Map, Reduce, and Select; Debugging Map Blocks; Debugging Reduce Blocks; Debugging Select Blocks; FizzBuzz; Sum of Odd Cubes; Sort a List of Names by Surname;Convert a List of Names to CSVGenerate a Random List of Names; Clean a Data Set; Annotate a Sequence of Sales with Running Total; Pascalâ#x80; #x99; s Triangle; Reverse Polish Notation Parser; Generate a List of Team Name Bars; Find Intersection Points of Two Functions; Group by Area Code; Sliding Window Average; Denormalize a Data Set; Pythagorean Triplets; Chapter 4: Reverse-Engineering Complex Solutions; Solution for Pascalâ#x80; #x99; s Triangle; Index;Walking you through several problems and solutions, this hands-on book will teach you the basics of Rubys map, reduce, and select functions, and will show how to use them to solve data-processing problems. --