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Kategoria: Big Data
Seria: Inne


Practical Data Wrangling

Allan Visochek
Data wydania: 2017-11-15
stron: 198, miękka oprawa, format:

więcej na stronie helion.pl
Turn your noisy data into relevant, insight-ready information by leveraging the data wrangling techniques in Python and R

About This Book

  • This easy-to-follow guide takes you through every step of the data wrangling process in the best possible way
  • Work with different types of datasets, and reshape the layout of your data to make it easier for analysis
  • Get simple examples and real-life data wrangling solutions for data pre-processing

Who This Book Is For

If you are a data scientist, data analyst, or a statistician who wants to learn how to wrangle your data for analysis in the best possible manner, this book is for you. As this book covers both R and Python, some understanding of them will be beneficial.

What You Will Learn

  • Read a csv file into python and R, and print out some statistics on the data
  • Gain knowledge of the data formats and programming structures involved in retrieving API data
  • Make effective use of regular expressions in the data wrangling process
  • Explore the tools and packages available to prepare numerical data for analysis
  • Find out how to have better control over manipulating the structure of the data
  • Create a dexterity to programmatically read, audit, correct, and shape data
  • Write and complete programs to take in, format, and output data sets

In Detail

Around 80% of time in data analysis is spent on cleaning and preparing data for analysis. This is, however, an important task, and is a prerequisite to the rest of the data analysis workflow, including visualization, analysis and reporting. Python and R are considered a popular choice of tool for data analysis, and have packages that can be best used to manipulate different kinds of data, as per your requirements. This book will show you the different data wrangling techniques, and how you can leverage the power of Python and R packages to implement them.
You'll start by understanding the data wrangling process and get a solid foundation to work with different types of data. You'll work with different data structures and acquire and parse data from various locations. You'll also see how to reshape the layout of data and manipulate, summarize, and join data sets. Finally, we conclude with a quick primer on accessing and processing data from databases, conducting data exploration, and storing and retrieving data quickly using databases.
The book includes practical examples on each of these points using simple and real-world data sets to give you an easier understanding. By the end of the book, you'll have a thorough understanding of all the data wrangling concepts and how to implement them in the best possible way.

Style and approach

This is a practical book on data wrangling designed to give you an insight into the practical application of data wrangling. It takes you through complex concepts and tasks in an accessible way, featuring information on a wide range of data wrangling techniques with Python and R


Cena: 109.00 zł

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