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 a data frame and accessing its properties

A data frame in R is also a two-dimensional arrangement like a matrix, but it can contain a combination of data types in different columns. One column could be numeric, another column could be character. A data frame can be considered as a natural generalization of a matrix in R. In this recipe, you will learn how to create a data frame and how to access various columns and/or elements of it.

Getting ready

Since you have already learned to create a matrix, it will be relatively simple to understand the data frame. It is good to have an understanding of variables and datasets. Though the structure of a data frame is similar to a matrix, it has more information within it.