Book Image

Big Data Analysis with Python

By : Ivan Marin, Ankit Shukla, Sarang VK
Book Image

Big Data Analysis with Python

By: Ivan Marin, Ankit Shukla, Sarang VK

Overview of this book

Processing big data in real time is challenging due to scalability, information inconsistency, and fault tolerance. Big Data Analysis with Python teaches you how to use tools that can control this data avalanche for you. With this book, you'll learn practical techniques to aggregate data into useful dimensions for posterior analysis, extract statistical measurements, and transform datasets into features for other systems. The book begins with an introduction to data manipulation in Python using pandas. You'll then get familiar with statistical analysis and plotting techniques. With multiple hands-on activities in store, you'll be able to analyze data that is distributed on several computers by using Dask. As you progress, you'll study how to aggregate data for plots when the entire data cannot be accommodated in memory. You'll also explore Hadoop (HDFS and YARN), which will help you tackle larger datasets. The book also covers Spark and explains how it interacts with other tools. By the end of this book, you'll be able to bootstrap your own Python environment, process large files, and manipulate data to generate statistics, metrics, and graphs.
Table of Contents (11 chapters)
Big Data Analysis with Python
Preface

Components of a Graph


Each graph has a set of common components that can be adjusted. The names that Matplotlib uses for these components are demonstrated in the following graph:

Figure 2.3: Components of a graph

The components of a graph are as follows:

  • Figure: The base of the graph, where all the other components are drawn.

  • Axis: Contains the figure elements and sets the coordinate system.

  • Title: The title gives the graph its name.

  • X-axis label: The name of the x-axis, usually named with the units.

  • Y-axis label: The name of the y-axis, usually named with the units.

  • Legend: A description of the data plotted in the graph, allowing you to identify the curves and points in the graph.

  • Ticks and tick labels: They indicate the points of reference on a scale for the graph, where the values of the data are. The labels indicate the values themselves.

  • Line plots: These are the lines that are plotted with the data.

  • Markers: Markers are the pictograms that mark the point data.

  • Spines: The lines that delimit the...