Book Image

Mastering Go - Second Edition

By : Mihalis Tsoukalos
Book Image

Mastering Go - Second Edition

By: Mihalis Tsoukalos

Overview of this book

Often referred to (incorrectly) as Golang, Go is the high-performance systems language of the future. Mastering Go, Second Edition helps you become a productive expert Go programmer, building and improving on the groundbreaking first edition. Mastering Go, Second Edition shows how to put Go to work on real production systems. For programmers who already know the Go language basics, this book provides examples, patterns, and clear explanations to help you deeply understand Go’s capabilities and apply them in your programming work. The book covers the nuances of Go, with in-depth guides on types and structures, packages, concurrency, network programming, compiler design, optimization, and more. Each chapter ends with exercises and resources to fully embed your new knowledge. This second edition includes a completely new chapter on machine learning in Go, guiding you from the foundation statistics techniques through simple regression and clustering to classification, neural networks, and anomaly detection. Other chapters are expanded to cover using Go with Docker and Kubernetes, Git, WebAssembly, JSON, and more. If you take the Go programming language seriously, the second edition of this book is an essential guide on expert techniques.
Table of Contents (20 chapters)
Title Page

Outlier analysis

Outlier analysis is about finding the values that look like they do not belong with the rest of the values. Put simply, outliers are extreme values that greatly differ from the other observations. A good book on outlier analysis is Outlier Analysis, 2nd Edition, by Charu C. Aggarwal (Springer, 2017).

The outlier technique that is going to be implemented in outlier.go, which is going to be presented in four parts, is based on standard deviation. You will learn more about this technique later.

The first part of outlier.go is as follows:

package main 
 
import ( 
    "bufio" 
    "flag" 
    "fmt" 
    "io" 
    "math" 
    "os" 
    "sort" 
    "strconv" 
    "strings" 
) 

The technique that is going to be implemented requires packages of the standard Go library only.

The second...