Python Data Visualization Cookbook电子书

Python Data Visualization Cookbook

Table of Contents

Python Data Visualization Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

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Why Subscribe?

Free Access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Preparing Your Working Environment

Introduction

Installing matplotlib, NumPy, and SciPy

Getting ready

How to do it...

How it works...

There's more...

Installing virtualenv and virtualenvwrapper

Getting ready

How to do it...

Installing matplotlib on Mac OS X

Getting ready

How to do it...

Installing matplotlib on Windows

Getting ready

How to do it...

There's more...

Installing Python Imaging Library (PIL) for image processing

How to do it...

How it works...

There's more...

Installing a requests module

How to do it...

How it works...

Customizing matplotlib's parameters in code

Getting ready

How to do it...

How it works...

Customizing matplotlib's parameters per project

Getting ready

How to do it...

How it works...

There's more...

2. Knowing Your Data

Introduction

Importing data from CSV

Getting ready

How to do it...

How it works...

There's more...

Importing data from Microsoft Excel files

Getting ready

How to do it...

How it works...

There's more...

Importing data from fixed-width datafiles

Getting ready

How to do it...

How it works...

Importing data from tab-delimited files

Getting ready

How to do it...

How it works...

There's more...

Importing data from a JSON resource

Getting ready

How to do it...

How it works...

There's more...

Exporting data to JSON, CSV, and Excel

Getting ready

How to do it...

How it works...

There's more...

Importing data from a database

Getting ready

How to do it...

How it works...

There's more...

Cleaning up data from outliers

Getting ready

How to do it...

There's more...

Reading files in chunks

How to do it...

How it works...

There's more...

Reading streaming data sources

How to do it...

How it works...

There's more...

Importing image data into NumPy arrays

Getting ready

How to do it...

How it works...

There's more...

Generating controlled random datasets

Getting ready

How to do it...

Smoothing the noise in real-world data

Getting ready

How to do it...

How it works...

There's more...

3. Drawing Your First Plots and Customizing Them

Introduction

Defining plot types – bar, line, and stacked charts

Getting ready

How to do it...

How it works...

There's more...

Drawing a simple sine and cosine plot

Getting ready

How to do it...

Defining axis lengths and limits

Getting ready

How to do it...

How it works...

There's more...

Defining plot line styles, properties, and format strings

Getting ready

How to do it...

How it works...

Color

Background color

Setting ticks, labels, and grids

Getting ready

How to do it...

Adding a legend and annotations

Getting ready

How to do it...

How it works...

Moving spines to the center

How to do it...

How it works...

There's more...

Making histograms

Getting ready

How to do it...

How it works...

Making bar charts with error bars

Getting ready

How to do it...

How it works...

There's more...

Making pie charts count

Getting ready

How to do it...

Plotting with filled areas

Getting ready

How to do it...

How it works...

There's more...

Drawing scatter plots with colored markers

Getting ready

How to do it...

How it works...

4. More Plots and Customizations

Introduction

Setting the transparency and size of axis labels

Getting ready

How to do it...

How it works...

There's more...

Adding a shadow to the chart line

Getting ready

How to do it...

How it works...

There's more...

Adding a data table to the figure

Getting ready

How to do it...

How it works...

There's more...

Using subplots

Getting ready

How to do it...

How it works...

There's more...

Customizing grids

Getting ready

How to do it...

How it works...

Creating contour plots

Getting ready

How to do it...

How it works...

Filling an under-plot area

Getting ready

How to do it...

How it works...

Drawing polar plots

Getting ready

How to do it...

How it works...

Visualizing the filesystem tree using a polar bar

Getting ready

How to do it...

How it works...

5. Making 3D Visualizations

Introduction

Creating 3D bars

Getting ready

How to do it...

How it works...

There's more...

Creating 3D histograms

Getting ready

How to do it...

How it works...

Animating in matplotlib

Getting ready

How to do it...

How it works...

There's more...

Animating with OpenGL

Getting ready

How to do it...

How it works...

There's more...

Using Pyglet Quickstart

Using Glumpy Quickstart

Pyprocessing introduction

6. Plotting Charts with Images and Maps

Introduction

Processing images with PIL

Getting ready

How to do it...

How it works...

There's more...

Plotting with images

Getting ready

How to do it...

How it works...

Displaying an image with other plots in the figure

Getting ready

How to do it...

How it works...

There's more...

Plotting data on a map using Basemap

Getting ready

How to do it...

How it works...

There's more...

Plotting data on a map using Google Map API

Getting ready

How to do it...

How it works...

There's more...

Generating CAPTCHA images

Getting ready

How to do it...

How it works...

There's more...

7. Using Right Plots to Understand Data

Introduction

Understanding logarithmic plots

Getting ready

How to do it...

How it works...

Understanding spectrograms

Getting ready

How to do it...

How it works...

There's more...

Creating a stem plot

Getting ready

How to do it...

How it works...

Drawing streamlines of vector flow

Getting ready

How to do it...

How it works...

There's more...

Using colormaps

Getting ready

How to do it...

How it works...

There's more...

Using scatter plots and histograms

Getting ready

How to do it...

How it works...

There's more...

Plotting the cross-correlation between two variables

Getting ready

How to do it...

How it works...

Importance of autocorrelation

Getting ready

How to do it...

How it works...

There's more...

8. More on matplotlib Gems

Introduction

Drawing barbs

Getting ready

How to do it...

How it works...

There's more...

Making a box and a whisker plot

Getting ready

How to do it...

How it works...

Making Gantt charts

Getting ready

How to do it...

How it works...

Making errorbars

Getting ready

How to do it...

How it works...

There's more...

Making use of text and font properties

Getting ready

How to do it...

How it works...

Rendering text with LaTeX

Getting ready

How to do it...

How it works...

There's more...

Understanding the difference between pyplot and OO API

Getting ready

How to do it...

How it works...

There's more...

Index