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)

Using the pipe operator for data processing

Whenever we work in any data analysis projects, we usually filter, summarize by groups, and then create plots out of that. In this task sequence, the output of one task is usually the input of another task and then move forward. The most naïve practice is to create temporary objects by taking the output of each step and using that object as an input for later stage. This approach takes lots of memory, and usually, the whole operation is time consuming. In this recipe, you will use a specialized operator, known as the pipe operator, to do the sequential tasks. Though this operator is implemented in the magrittr library, it is mostly used in combination with the dplyr functions.

Getting ready

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