Book Image

R for Data Science Cookbook (n)

By : Yu-Wei, Chiu (David Chiu)
Book Image

R for Data Science Cookbook (n)

By: Yu-Wei, Chiu (David Chiu)

Overview of this book

This cookbook offers a range of data analysis samples in simple and straightforward R code, providing step-by-step resources and time-saving methods to help you solve data problems efficiently. The first section deals with how to create R functions to avoid the unnecessary duplication of code. You will learn how to prepare, process, and perform sophisticated ETL for heterogeneous data sources with R packages. An example of data manipulation is provided, illustrating how to use the “dplyr” and “data.table” packages to efficiently process larger data structures. We also focus on “ggplot2” and show you how to create advanced figures for data exploration. In addition, you will learn how to build an interactive report using the “ggvis” package. Later chapters offer insight into time series analysis on financial data, while there is detailed information on the hot topic of machine learning, including data classification, regression, clustering, association rule mining, and dimension reduction. By the end of this book, you will understand how to resolve issues and will be able to comfortably offer solutions to problems encountered while performing data analysis.
Table of Contents (19 chapters)
R for Data Science Cookbook
About the Author
About the Reviewer

Learning the markdown syntax

Markdown is a lightweight markup language; it allows anyone to quickly create a formatted document in plain text instead of using complicated HTML. In this recipe, we introduce how to write a report with markdown syntax.

Getting ready

Ensure you have installed the latest version of R and RStudio on your operating system. Also, you need to have created and opened a new R Markdown (.rmd) file in RStudio.

How to do it…

Please perform the following steps to write simple markdown syntax:

  1. First, create headings by placing a hashtag # in front of the words:



    # H1

    ## H2

    ### H3

  2. Next, emphasize words by style with bold, italics, and strikethrough:



    This is plan text:






  3. For list items, we can list items in an ordered item list or an unordered item list:



    1. First Ordered list item

    2. Second Ordered List Item

      • Unordered sub-list

    • Unordered List Item

      1. Ordered sub-list-1

      2. Ordered...