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Course Description

Blue gradient rectangle with assorted sizes of white gears scattered around the word python in white and the python symbol of interlocked shapes of blue and gold in the center

 

Data is the new oil, but it comes crude. To do anything meaningful - modeling, visualization, machine learning, for predictive analysis – you first need to wrestle and wrangle with data. Data Wrangling with Python teaches you the essentials that will get you up and running with data wrangling in no time.

For data to be useful and meaningful, it must be curated and refined. Data Wrangling with Python teaches you the core ideas behind these processes and equips you with knowledge of the most popular tools and techniques in the domain.

The course starts with the absolute basics of Python, focusing mainly on data structures. It then delves into the fundamental tools of data wrangling like NumPy and Pandas libraries. You'll explore useful insights into why you should stay away from traditional ways of data cleaning, as done in other languages, and take advantage of the specialized pre-built routines in Python. This combination of Python tips and tricks will also demonstrate how to use the same Python backend and extract/transform data from an array of sources including the Internet, large database vaults, and Excel financial tables. To help you prepare for more challenging scenarios, you'll cover how to handle missing or wrong data, and reformat it based on the requirements from the downstream analytics tool. The course will further help you grasp concepts through real-world examples and datasets.

This course teaches concepts by deep-dive on-hand exercises. Throughout the course, you will learn data wrangling with hands-on exercises and activities. You’ll find checklists, best practices, and critical points mentioned throughout the lessons, making things more interesting.

By the end of this course, you will be confident in using a diverse array of sources to extract, clean, transform, and format your data efficiently.

Course Outline

  • Lesson 1: Introduction to Data Structure using Python
    • Python for Data Wrangling
    • Lists, Sets, Strings, Tuples, and Dictionaries
  • Lesson 2: Advanced Operations on Built-In Data Structure
    • Advanced Data Structures
    • Basic File Operations in Python
  • Lesson 3: Introduction to NumPy, Pandas, and Matplotlib
    • NumPy Arrays
    • Pandas DataFrames
    • Statistics and Visualization with NumPy and Pandas
    • Using NumPy and Pandas to Calculate Basic Descriptive Statistics on the DataFrame
  • Lesson 4: Deep Dive into Data Wrangling with Python
    • Subsetting, Filtering, and Grouping
    • Detecting Outliers and Handling Missing Values
    • Concatenating, Merging, and Joining
    • Useful Methods of Pandas
  • Lesson 5: Get Comfortable with a Different Kind of Data Sources
    • Reading Data from Different Text-Based (and Non-Text-Based) Sources
    • Introduction to BeautifulSoup4 and Web Page Parsing
  • Lesson 6: Learning the Hidden Secrets of Data Wrangling
    • Advanced List Comprehension and the zip Function
    • Data Formatting
  • Lesson 7: Advanced Web Scraping and Data Gathering
    • Basics of Web Scraping and BeautifulSoup libraries
    • Reading Data from XML
  • Lesson 8: RDBMS and SQL
    • Refresher of RDBMS and SQL
    • Using an RDBMS (MySQL/PostgreSQL/SQLite)
  • Lesson 9: Application in real life and Conclusion of course
    • Applying Your Knowledge to a Real-life Data Wrangling Task
    • An Extension to Data Wrangling

Learner Outcomes

At the end of this course, the learner will be able to:

  • Use and manipulate complex and simple data structures
  • Harness the full potential of DataFrames and Numpy array at run time
  • Perform web scraping with BeautifulSoup4 and html5lib
  • Execute advanced string search and manipulation with RegEX
  • Handle outliers and perform data imputation with Pandas
  • Use descriptive statistics and plotting techniques
  • Practice data wrangling and modeling using data generation techniques

Recommendations

Data Wrangling with Python takes a practical approach to equip beginners with the most essential data analysis tools in the shortest possible time. It contains multiple activities that use real-life business scenarios for you to practice and apply your new skills in a highly relevant context.

Applies Towards the Following Certificates

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