June 2019
Beginner to intermediate
360 pages
10h 55m
English
Content preview from Big Data Simplified
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
xvi | Contents
Chapter 8 Working with Big Data inR 191
8.1 Prerequisites 192
8.1.1 Install R in Your System 192
8.1.2 Know How to Manage R Scripts 192
8.1.3 Introduction to Basic R Commands 193
8.2 Exploratory Data Analysis 204
8.2.1 Basic Statistical Techniques for Data Exploration 204
8.2.2 Basic Plots for Data Exploration 207
8.3 R Libraries for Dealing with Large Data Sets 212
8.3.1 ff and ffbase Packages 213
8.3.2 Parallel Package 218
8.3.3 data.table Package 219
8.4 Integrating Hadoop with R 220
8.5 Simple R Program with Hadoop 223
Summary 225
Multiple-choice Questions (1 Mark Questions) 225
Short-answer Type Questions (5 Marks Questions) 226
Long-answer Type Questions (10 Marks Questions) 226
Chapter 9 Working with Big Data ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.