Programming
Reader small image

You're reading from  Learning R Programming

Product typeBook
Published inOct 2016
Reading LevelBeginner
PublisherPackt
ISBN-139781785889776
Edition1st Edition
Languages
R
Tools
RStudio
Concepts
Programming Language
Right arrow
Author (1)
Kun Ren
Kun Ren
author image
Kun Ren

Kun Ren has used R for nearly 4 years in quantitative trading, along with C++ and C#, and he has worked very intensively (more than 8-10 hours every day) on useful R packages that the community does not offer yet. He contributes to packages developed by other authors and reports issues to make things work better. He is also a frequent speaker at R conferences in China and has given multiple talks. Kun also has a great social media presence. Additionally, he has substantially contributed to various projects, which is evident from his GitHub account: https://github.com/renkun-ken https://cn.linkedin.com/in/kun-ren-76027530 http://renkun.me/ http://renkun.me/formattable/ http://renkun.me/pipeR/ http://renkun.me/rlist/
Read more about Kun Ren

Right arrow

Using logical functions

A logical vector only takes TRUE or FALSE and is mostly used to filter data. In practice, it is common to create joint conditions by multiple logical vectors where a number of logical operators and functions may involve.

Logical operators

Like many other programming languages, R enables a few operators to do basic logical calculations. The following table demonstrates what they do:

Symbol

Description

Example

Result

&

Vectorized AND

c(T, T) & c(T, F)

c(TRUE, FALSE)

|

Vectorized OR

c(T, T) | c(T, F)

c(TRUE, TRUE)

&&

Univariate AND

c(T, T) && c(F, T)

FALSE

||

Univariate OR

c(T, T) || c(F, T)

TRUE

!

Vectorized NOT

!c(T, F)

c(FALSE, TRUE)

%in%

Vectorized IN

c(1, 2) %in% c(1, 3, 4, 5)

c(TRUE, FALSE)

Note that in an if expression, && and || are often used to perform logical calculations that are only needed to yield a single-element logical vector. However, the potential risk of using && is that if it is made...

lock icon
The rest of the page is locked
Previous Page
Chapter 11 of 21, Page 3
Next Page
You have been reading a chapter from
Learning R Programming
Published in: Oct 2016Publisher: PacktISBN-13: 9781785889776
© 2016 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Kun Ren

Kun Ren has used R for nearly 4 years in quantitative trading, along with C++ and C#, and he has worked very intensively (more than 8-10 hours every day) on useful R packages that the community does not offer yet. He contributes to packages developed by other authors and reports issues to make things work better. He is also a frequent speaker at R conferences in China and has given multiple talks. Kun also has a great social media presence. Additionally, he has substantially contributed to various projects, which is evident from his GitHub account: https://github.com/renkun-ken https://cn.linkedin.com/in/kun-ren-76027530 http://renkun.me/ http://renkun.me/formattable/ http://renkun.me/pipeR/ http://renkun.me/rlist/
Read more about Kun Ren

Personalised recommendations for you

Based on your interests and search pattern

C++ Programming for Linux Systems

C++ Programming for Linux Systems

This book covers the essential system programming tools and helps you explore the features of C++20. It emphasizes important details to maintain code quality and tackle everyday challenges of developing software for high performance, optimization, and more.

BookSep 2023288 pages
Expert C++

Expert C++

Discover advanced programming techniques, the latest features of C++17 and C++20, and best practices for memory management, debugging, testing, and large-scale application design with Expert C++. Ideal for experienced developers advancing to proficient programmers and building professional-grade C++ applications.

BookAug 2023604 pages
iOS 17 Programming for Beginners

iOS 17 Programming for Beginners

iOS 17 Programming for Beginners, Eighth Edition is your comprehensive guide to learning the art of iOS app development. Whether you dream of creating the next chart-topping app or simply want to enhance your programming skills, this book is your trusted companion on this exciting journey.

BookOct 2023604 pages4
Developer Career Masterplan

Developer Career Masterplan

Written by industry experts that have spent the last 20+ years helping developers grow their career path towards senior developer positions and beyond. This book provides a comprehensive guide, sharing examples and stories from their global careers. By the end, you’ll have the knowledge to create a clear career progression plan as a technical professional.

BookSep 2023310 pages
Refactoring with C#

Refactoring with C#

In Refactoring with C#, you’ll explore the process of safely refactoring modern .NET code using Visual Studio features, advanced unit tests, AI assistance, and custom Roslyn analyzers.

BookNov 2023434 pages
Python Real-World Projects

Python Real-World Projects

Amplify your developer journey by curating a dynamic project portfolio that outshines traditional resumes. Delve into the Python realm through immersive projects, mastering core concepts while constructing comprehensive modules and applications. From data acquisition prowess to impactful data visualization, Python Real-World Projects arms you with essential skills to beat the competition.

BookSep 2023478 pages5
The MVVM Pattern in .NET MAUI

The MVVM Pattern in .NET MAUI

The MVVM Pattern in .NET MAUI enables developers to master MVVM principles and effectively apply them to .NET MAUI. This book uses real-life examples and covers complex problems to help you successfully apply MVVM with .NET MAUI to confidently develop robust and high-performing cross-platform apps.

BookNov 2023386 pages
Extending Microsoft Business Central with Power Platform

Extending Microsoft Business Central with Power Platform

Extending Business Central with the Power Platform is a step-by-step guide for Business Central professionals to create solutions that automate business processes, explain complex workflow approvals, and integrate with hundreds of other systems, without traditional development. It’ll guide you in customizing Business Central with Power Platform.

BookAug 2023458 pages5
Extending Microsoft Business Central with Power Platform

Extending Microsoft Business Central with Power Platform

Extending Business Central with the Power Platform is a step-by-step guide for Business Central professionals to create solutions that automate business processes, explain complex workflow approvals, and integrate with hundreds of other systems, without traditional development. It’ll guide you in customizing Business Central with Power Platform.

BookAug 2023458 pages5
Quantum Computing Algorithms

Quantum Computing Algorithms

The book emphasizes intuitive ideas behind quantum algorithms in ways that other books don’t cover, striking a careful balance between no math and too much math. To get the most from this book, you should be comfortable with basic algebra and writing simple computer code. No prior understanding of quantum physics is needed to get started.

BookSep 2023342 pages
Python – Complete Python, Django, Data Science and ML Guide

Python – Complete Python, Django, Data Science and ML Guide

Unlock Python's full potential with this 50+ hour course! From programming to web and game development, data manipulation, and machine learning, gain the skills required to succeed in various Python-related careers. With practical tasks, hands-on experience, and a strong foundation in Python, you'll be ready to tackle real-world challenges and take advantage of the many opportunities this versatile language offers.

VideoNov 202350 hours 30 minutes5
Python – Complete Python, Django, Data Science and ML Guide

Python – Complete Python, Django, Data Science and ML Guide

Unlock Python's full potential with this 50+ hour course! From programming to web and game development, data manipulation, and machine learning, gain the skills required to succeed in various Python-related careers. With practical tasks, hands-on experience, and a strong foundation in Python, you'll be ready to tackle real-world challenges and take advantage of the many opportunities this versatile language offers.

VideoNov 202350 hours 30 minutes5