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R Programming By Example

You're reading from R Programming By Example Practical, hands-on projects to help you get started with R

Product type Paperback

Published in Dec 2017

Publisher Packt

ISBN-13 9781788292542

Length 470 pages

Edition 1st Edition

Languages

R

Concepts

Programming Language

Authors (2):

Omar Trejo Navarro

Omar Trejo Navarro

View More author details

Table of Contents (18) Chapters

Title Page

Credits

About the Author

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

1. Introduction to R

2. Understanding Votes with Descriptive Statistics FREE CHAPTER

3. Predicting Votes with Linear Models

4. Simulating Sales Data and Working with Databases

5. Communicating Sales with Visualizations

6. Understanding Reviews with Text Analysis

7. Developing Automatic Presentations

8. Object-Oriented System to Track Cryptocurrencies

9. Implementing an Efficient Simple Moving Average

10. Adding Interactivity with Dashboards

11. Required Packages

Summarizing the data into a data frame

To get a summary of the data, we may execute summary(data) and see the relevant summaries for each type of variable. The summary is tailored for each column's data type. As you can see, numerical variables such as ID and NVotes get a quantile summary, while factor (categorical) variables get a count for each different category, such as AreaType and RegionName. If there are many categories, the summary will show the categories that appear the most and group the rest into a (Other) group, as we can see at the bottom of RegionName.

summary(data)
#>       ID        RegionName              NVotes          Leave
#> Min.   :  1    Length: 1070        Min.   : 1039    Min.   : 287
#> 1st Qu.: 268   Class : character   1st Qu.: 4252    1st Qu.: 1698
#> Median : 536   Mode  : character   Median : 5746    Median : 2874
#> Mean   : 536                       Mean   : 5703    Mean   : 2971
#> 3rd Qu.: 803                       3rd Qu.: 7020    3rd...

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R Programming By Example

Published in: Dec 2017

Publisher: Packt

ISBN-13: 9781788292542

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Authors (2)

Trejo Navarro

Trejo Navarro

Omar Trejo Navarro is a data consultant. He co-founded Datata, is actively working on CVEST, and maintains a personal website (otrenav.com). He is an applied mathematics and economics double major from ITAM in Mexico City, where he continues to work as a research assistant. He does software development with a focus on data platforms, data science, and web applications. He has worked with clients from all over the world, and is a keen supporter of open source, open data, and open science in general.

See other products by Trejo Navarro

Omar Trejo Navarro

Omar Trejo Navarro

Omar Trejo Navarro is a data consultant. He co-founded Datata, is actively working on CVEST, and maintains a personal website (otrenav.com). He is an applied mathematics and economics double major from ITAM in Mexico City, where he continues to work as a research assistant. He does software development with a focus on data platforms, data science, and web applications. He has worked with clients from all over the world, and is a keen supporter of open source, open data, and open science in general.

See other products by Omar Trejo Navarro

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