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Getting Started with Julia

By : Ivo Balbaert
Book Image

Getting Started with Julia

By: Ivo Balbaert

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Getting Started with Julia
Ivo Balbaert
Feb, 2015 | 214 pages
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Table of Contents (19 chapters)
Getting Started with Julia
Getting Started with Julia
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
The Rationale for Julia
The Rationale for Julia
Free Chapter
1
Installing the Julia Platform
Installing the Julia Platform
Installing Julia
Working with Julia's shell
Startup options and Julia scripts
Packages
Installing and working with Julia Studio
Installing and working with IJulia
Installing Sublime-IJulia
Installing Juno
Other editors and IDEs
How Julia works
Summary
2
Variables, Types, and Operations
Variables, Types, and Operations
Variables, naming conventions, and comments
Types
Integers
Floating point numbers
Elementary mathematical functions and operations
Rational and complex numbers
Characters
Strings
Regular expressions
Ranges and arrays
Dates and times
Scope and constants
Summary
3
Functions
Functions
Defining functions
Optional and keyword arguments
Anonymous functions
First-class functions and closures
Recursive functions
Map, filter, and list comprehensions
Generic functions and multiple dispatch
Summary
4
Control Flow
Control Flow
Conditional evaluation
Repeated evaluation
Exception handling
Scope revisited
Tasks
Summary
5
Collection Types
Collection Types
Matrices
Tuples
Dictionaries
Sets
Example project – word frequency
Summary
6
More on Types, Methods, and Modules
More on Types, Methods, and Modules
Type annotations and conversions
The type hierarchy – subtypes and supertypes
User-defined and composite types
Types and collections – inner constructors
Type unions
Parametric types and methods
Standard modules and paths
Summary
7
Metaprogramming in Julia
Metaprogramming in Julia
Expressions and symbols
Eval and interpolation
Defining macros
Built-in macros
Reflection capabilities
Summary
8
I/O, Networking, and Parallel Computing
I/O, Networking, and Parallel Computing
Basic input and output
Working with files
Using DataFrames
Working with TCP sockets and servers
Interacting with databases
Parallel operations and computing
Summary
9
Running External Programs
Running External Programs
Running shell commands
Calling C and FORTRAN
Calling Python
Performance tips
Summary
10
The Standard Library and Packages
The Standard Library and Packages
Digging deeper into the standard library
Julia's package manager
Publishing a package
Graphics in Julia
Using Gadfly on data
Summary
List of Macros and Packages
List of Macros and Packages
Macros
List of packages
Index
Index

Chapter 8. I/O, Networking, and Parallel Computing

In this chapter, we will explore how Julia interacts with the outside world, reading from standard input and writing to standard output, files, networks, and databases. Julia provides asynchronous networking I/O using the libuv library. We will see how to handle data in Julia. We will also discover the parallel processing model of Julia.

In this chapter, the following topics are covered:

  • Basic input and output

  • Working with files (including the CSV files)

  • Using DataFrames

  • Working with TCP sockets and servers

  • Interacting with databases

  • Parallel operations and computing

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