Book Image

Julia 1.0 Programming Cookbook

By : Bogumił Kamiński, Przemysław Szufel
Book Image

Julia 1.0 Programming Cookbook

By: Bogumił Kamiński, Przemysław Szufel

Overview of this book

Julia, with its dynamic nature and high-performance, provides comparatively minimal time for the development of computational models with easy-to-maintain computational code. This book will be your solution-based guide as it will take you through different programming aspects with Julia. Starting with the new features of Julia 1.0, each recipe addresses a specific problem, providing a solution and explaining how it works. You will work with the powerful Julia tools and data structures along with the most popular Julia packages. You will learn to create vectors, handle variables, and work with functions. You will be introduced to various recipes for numerical computing, distributed computing, and achieving high performance. You will see how to optimize data science programs with parallel computing and memory allocation. We will look into more advanced concepts such as metaprogramming and functional programming. Finally, you will learn how to tackle issues while working with databases and data processing, and will learn about on data science problems, data modeling, data analysis, data manipulation, parallel processing, and cloud computing with Julia. By the end of the book, you will have acquired the skills to work more effectively with your data
Table of Contents (18 chapters)
Title Page
Copyright and Credits
About Packt

Working with UTF-8 strings

Julia supports handling UTF-8 strings. However, the way you work with them is slightly different from such languages as R or Python. In this recipe, you will discover more about the String and SubString types, as well as the correct method of indexing into a string in Julia.

We will learn this by parsing a file containing the word Hello, written in different languages.

Getting ready

In this recipe we will work with text stored in the file hello.txt that has the following contents as shown in the following screenshot:


Some terminals, in particular, the standard Windows terminal started by cmd, might have problems with displaying some of the characters in this recipe. If you encounter such a problem then we recommend you to either uses Juno, ConEmu (under Windows) or terminal in-built into Vim 8.1.1. We have tested that in these three environments all characters display correctly if you make them use a font that supports an appropriate range of Unicode. Such a font...