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

Reading CSV files

CSV files are plain text files with a format. In this section, you will learn how to read a text file that contains points of a plane, which means that each line will contain a pair of coordinates. Additionally, you are also going to use an external Go library named Glot, which will help you to create a plot of the points that you read from the CSV file. Note that Glot uses Gnuplot, which means that you will need to install Gnuplot on your UNIX machine in order to use Glot.

The name of the source file for this topic is CSVplot.go, and it is going to be presented in five parts. The first code segment is as follows:

package main 
import ( 

The second part of CSVplot.go is shown in the following Go code:

func main() {