Modern R Programming Cookbook by Abedin, Jaynal -- Read -- Imperial Library of Trantor

Index

Title Page Copyright

Modern R Programming Cookbook

Credits About the Author About the Reviewer www.PacktPub.com

Why subscribe?

Customer Feedback Preface

What this book covers What you need for this book Who this book is for Sections

Getting ready How to do it… How it works… There's more… See also

Conventions Reader feedback Customer support

Downloading the example code Errata Piracy Questions

Installing and Configuring R and its Libraries

Introduction Installing and configuring base R in Windows

Getting ready How to do it... How it works... There's more... See also

Installing and configuring base R in Linux

Getting ready How to do it... There's more... See also

Installing and configuring RStudio IDE in Windows

Getting ready How to do it… How it works… There's more… See also

Installing and configuring RStudio IDE in Linux

Getting ready How to do it… How it works... See also

Installing and configuring R tools for Visual Studio in Windows

Getting ready How to do it… How it works… See also

Installing R libraries from various sources

Getting ready How to do it…

The ggplot2 library The devtools library Installing a library from GitHub Installing a library from the BioC repository

How it works… There's more… See also

Installing a specific version of R library

Getting ready How to do it… How it works…

Data Structures in R

Introduction Creating a vector and accessing its properties

Getting ready How to do it… How it works… There's more… See also

Creating a matrix and accessing its properties

Getting ready How to do it… How it works… There's more… See also

Creating a data frame and accessing its properties

Getting ready How to do it… How it works… There's more… See also

Creating an array and accessing its properties

Getting ready How to do it… How it works… There's more… See also

Creating a list from a combination of vector, matrix, and data frame

Getting ready How to do it… How it works… There's more… See also

Converting a matrix to a data frame and a data frame to a matrix

Getting ready How to do it… How it works… There's more… See also

Writing Customized Functions

Introduction Writing your first function in R

Getting ready How to do it… How it works… There’s more…

Writing functions with multiple arguments and use of default values

Getting ready How to do it… How it works… There’s more…

Handling data types in input arguments

Getting ready How to do it… How it works… There’s more…

Producing different output types and return values

Getting ready How to do it… How it works… There’s more…

Making a recursive call to a function

Getting ready How to do it… How it works… There’s more…

Handling exceptions and error messages

Getting ready How to do it… How it works… There’s more… See also

Conditional and Iterative Operations

Introduction The use of the if conditional statement

Getting ready How to do it… How it works… There’s more…

The use of the if…else conditional operator

Getting ready How to do it… How it works… There’s more…

The use of the ifelse vectorised conditional operator

Getting ready How to do it… How it works… There’s more… See also

Writing a function using the switch operator

Getting ready How to do it… How it works… There’s more…

Comparing the performance of switch and series of the if…else statements

Getting ready How to do it… How it works…

Using for loop for iterations

Getting ready How to do it… How it works…

Vectorised operation versus for loop

Getting ready How to do it… How it works…

R Objects and Classes

Introduction Defining a new S3 class

Getting ready How to do it… How it works… There's more… See also

Defining methods for the S3 class

Getting ready How to do it… How it works… There's more… See also

Creating a generic function and defining a method for the S3 class

Getting ready How to do it… How it works… There's more…

Defining a new S4 class

Getting ready How to do it… How it works… There's more… See also

Defining methods for an S4 class

Getting ready How to do it… How it works… There's more… See also

Creating a function to return an object of the S4 class

Getting ready How to do it… How it works… There's more… See also

Querying, Filtering, and Summarizing

Introduction Using the pipe operator for data processing

Getting ready How to do it… How it works… There's more… See also

Efficient and fast summarization using the dplyr verbs

Getting ready How to do it… How it works… There's more… See also

Using the customized function within the dplyr verbs

Getting ready How to do it... How it works... There's more… See also

Using the select verb for data processing

Getting ready How to do it... How it works... There's more… See also

Using the filter verb for data processing

Getting ready How to do it... How it works...

Using the arrange verb for data processing

Getting ready How to do it... How it works... There's more…

Using mutate for data processing

Getting ready How to do it... How it works... There's more…

Using summarise to summarize dataset

Getting ready How to do it... How it works...

R for Text Processing

Introduction Extracting unstructured text data from a plain web page

Getting ready How to do it… How it works… There’s more…

Extracting text data from an HTML page

Getting ready How to do it… How it works… There's more…

Extracting text data from an HTML page using the XML library

Getting ready How to do it… How it works…

Extracting text data from PubMed

Getting ready How to do it… How it works… There's more…

Importing unstructured text data from a plain text file

Getting ready How to do it… How it works… There's more…

Importing plain text data from a PDF file

Getting ready How to do it… How it works… There's more…

Pre-processing text data for topic modeling and sentiment analysis

Getting ready How to do it… How it works… There's more…

Creating a word cloud to explore unstructured text data

Getting ready How to do it… How it works… There's more…

Using regular expression in text processing

Getting ready How to do it… How it works… There's more…

R and Databases

Introduction Installing the PostgreSQL database server

Getting ready How to do it… How it works…

Creating a new user in the PostgreSQL database server

Getting ready How to do it… How it works… There's more… See also

Creating a table in a database in PostgreSQL

Getting ready How to do it... How it works… There's more…

Creating a dataset in PostgreSQL from R

Getting ready How to do it... How it works...

Interacting with the PostgreSQL database from R

Getting ready How to do it… How it works… There's more...

Creating and interacting with the SQLite database from R

Getting ready How to do it... How it works... There's more…

Parallel Processing in R

Introduction Creating an XDF file from CSV input

Getting ready How to do it… How it works… There's more… See also

Processing data as a chunk

Getting ready How to do it… How it works… There's more… See also

Comparing computation time with data frame and XDF

Getting ready How to do it… How it works… There's more…

Linear regression with larger data (rxFastLiner)

Getting ready How to do it… How it works… There's more… See also

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