Book Image

Julia Cookbook

By : Raj R Jalem, Jalem Raj Rohit
Book Image

Julia Cookbook

By: Raj R Jalem, Jalem Raj Rohit

Overview of this book

Want to handle everything that Julia can throw at you and get the most of it every day? This practical guide to programming with Julia for performing numerical computation will make you more productive and able work with data more efficiently. The book starts with the main features of Julia to help you quickly refresh your knowledge of functions, modules, and arrays. We’ll also show you how to utilize the Julia language to identify, retrieve, and transform data sets so you can perform data analysis and data manipulation. Later on, you’ll see how to optimize data science programs with parallel computing and memory allocation. You’ll get familiar with the concepts of package development and networking to solve numerical problems using the Julia platform. This book includes recipes on identifying and classifying data science problems, data modelling, data analysis, data manipulation, meta-programming, multidimensional arrays, and parallel computing. By the end of the book, you will acquire the skills to work more effectively with your data.
Table of Contents (12 chapters)

Symbols


Symbols are the basic blocks of expressions. They are used for concatenating two strings together. They are also used as interned strings while building expressions.

Getting ready

There aren't any major requirements for this chapter. The only requirement is that your Julia REPL should be up and running.

How to do it...

Symbols can take in some arguments and then return the concatenated string of the string representations of those arguments. This is an example of how you can do it in the REPL:

  • symbol("FirstName", "LastName")

    The output of the preceding command would look like this:

  • symbol("FirstName", 45)

    The output of the preceding command would look like this:

  • symbol("Foo", :Bar, 86)

    The output of the preceding command would look like:

Symbols create interned strings that are used for building expressions. An interned string is an immutable string that is used during string processing for optimizing time and space. The character : is used to create symbols. So, a symbol always...