Book Image

Modern R Programming Cookbook

By : Jaynal Abedin
Book Image

Modern R Programming Cookbook

By: Jaynal Abedin

Overview of this book

R is a powerful tool for statistics, graphics, and statistical programming. It is used by tens of thousands of people daily to perform serious statistical analyses. It is a free, open source system whose implementation is the collective accomplishment of many intelligent, hard-working people. There are more than 2,000 available add-ons, and R is a serious rival to all commercial statistical packages. The objective of this book is to show how to work with different programming aspects of R. The emerging R developers and data science could have very good programming knowledge but might have limited understanding about R syntax and semantics. Our book will be a platform develop practical solution out of real world problem in scalable fashion and with very good understanding. You will work with various versions of R libraries that are essential for scalable data science solutions. You will learn to work with Input / Output issues when working with relatively larger dataset. At the end of this book readers will also learn how to work with databases from within R and also what and how meta programming helps in developing applications.
Table of Contents (10 chapters)

Creating an XDF file from CSV input

An XDF file is a data file format in R used to store, process, and analyze a larger dataset. This file uses persistent memory, that is, hard disk storage, instead of RAM. The XDF file allows you to process datasets by chunks and takes less time than the typical R data frame. In this recipe, you will create a new XDF file from a CSV input file. The XDF file is not a primary choice for parallel processing, but it offers better control over your data through persisted storage and further processing.

Getting ready

To implement this recipe, you are required to install the RevoScaleR library.

The datasets (the CSV input files) used in this recipe are downloaded from the website of the Bureau of...