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Course #:WA2936

Advanced Data Analytics with PySpark Training

Objectives

  • Quick Intro to Spark / PySpark
  • Applying Spark SQL / DataFrames to problems that lend themselves to being solved using SQL and Pivot tables 
  • Exploratory Data Analysis (EDA)  - visual analysis using graphs
  • There are 8 hands-on labs

Audience

  • Business Analysts who want a scalable platform for solving SQL-centric problem

Prerequisites

Knowledge of SQL, familiarity with Python (or the ability to learn the basics of a new language)

Duration

Two days

 

Outline of Advanced Data Analytics with PySpark Training

Chapter 1. Introduction to Apache Spark

  • What is Apache Spark
  • The Spark Platform
  • Spark vs Hadoop's MapReduce (MR)
  • Common Spark Use Cases
  • Languages Supported by Spark
  • Running Spark on a Cluster
  • The Spark Application Architecture
  • The Driver Process
  • The Executor and Worker Processes
  • Spark Shell
  • Jupyter Notebook Shell Environment
  • Spark Applications
  • The spark-submit Tool
  • The spark-submit Tool Configuration
  • Interfaces with Data Storage Systems
  • Project Tungsten
  • The Resilient Distributed Dataset (RDD)
  • Datasets and DataFrames
  • Spark SQL, DataFrames, and Catalyst Optimizer
  • Spark Machine Learning Library
  • GraphX
  • Extending Spark Environment with Custom Modules and Files
  • Summary

Chapter 2. The Spark Shell

  • The Spark Shell
  • The Spark v.2 + Command-Line Shells
  • The Spark Shell UI
  • Spark Shell Options
  • Getting Help
  • Jupyter Notebook Shell Environment
  • Example of a Jupyter Notebook Web UI (Databricks Cloud)
  • The Spark Context (sc) and Spark Session (spark)
  • Creating a Spark Session Object in Spark Applications
  • The Shell Spark Context Object (sc)
  • The Shell Spark Session Object (spark)
  • Loading Files
  • Saving Files
  • Summary

Chapter 3. Introduction to Spark SQL

  • What is Spark SQL?
  • Uniform Data Access with Spark SQL
  • Hive Integration
  • Hive Interface
  • Integration with BI Tools
  • What is a DataFrame?
  • Creating a DataFrame in PySpark
  • Commonly Used DataFrame Methods and Properties in PySpark
  • Grouping and Aggregation in PySpark
  • The "DataFrame to RDD" Bridge in PySpark
  • The SQLContext Object
  • Examples of Spark SQL / DataFrame (PySpark Example)
  • Converting an RDD to a DataFrame Example
  • Example of Reading / Writing a JSON File
  • Using JDBC Sources
  • JDBC Connection Example
  • Performance, Scalability, and Fault-tolerance of Spark SQL
  • Summary

Chapter 4. Practical Introduction to Pandas

  • What is pandas?
  • The Series Object
  • Accessing Values and Indexes in Series
  • Setting Up Your Own Index
  • Using the Series Index as a Lookup Key
  • Can I Pack a Python Dictionary into a Series?
  • The DataFrame Object
  • The DataFrame's Value Proposition
  • Creating a pandas DataFrame
  • Getting DataFrame Metrics
  • Accessing DataFrame Columns
  • Accessing DataFrame Rows
  • Accessing DataFrame Cells
  • Using iloc
  • Using loc
  • Examples of Using loc
  • DataFrames are Mutable via Object Reference!
  • Deleting Rows and Columns
  • Adding a New Column to a DataFrame
  • Appending / Concatenating DataFrame and Series Objects
  • Example of Appending / Concatenating DataFrames
  • Re-indexing Series and DataFrames
  • Getting Descriptive Statistics of DataFrame Columns
  • Getting Descriptive Statistics of DataFrames
  • Applying a Function
  • Sorting DataFrames
  • Reading From CSV Files
  • Writing to the System Clipboard
  • Writing to a CSV File
  • Fine-Tuning the Column Data Types
  • Changing the Type of a Column
  • What May Go Wrong with Type Conversion
  • Summary

Chapter 5. Data Visualization with seaborn in Python

  • Data Visualization
  • Data Visualization in Python
  • Matplotlib
  • Getting Started with matplotlib
  • Figures
  • Saving Figures to a File
  • Seaborn
  • Getting Started with seaborn
  • Histograms and KDE
  • Plotting Bivariate Distributions
  • Scatter plots in seaborn
  • Pair plots in seaborn
  • Heatmaps
  • Summary

Chapter 6. (Optional) Quick Introduction to Python for Data Engineers

  • What is Python?
  • Additional Documentation
  • Which version of Python am I running?
  • Python Dev Tools and REPLs
  • IPython
  • Jupyter
  • Jupyter Operation Modes
  • Jupyter Common Commands
  • Anaconda
  • Python Variables and Basic Syntax
  • Variable Scopes
  • PEP8
  • The Python Programs
  • Getting Help
  • Variable Types
  • Assigning Multiple Values to Multiple Variables
  • Null (None)
  • Strings
  • Finding Index of a Substring
  • String Splitting
  • Triple-Delimited String Literals
  • Raw String Literals
  • String Formatting and Interpolation
  • Boolean
  • Boolean Operators
  • Numbers
  • Looking Up the Runtime Type of a Variable
  • Divisions
  • Assignment-with-Operation
  • Comments:
  • Relational Operators
  • The if-elif-else Triad
  • An if-elif-else Example
  • Conditional Expressions (a.k.a. Ternary Operator)
  • The While-Break-Continue Triad
  • The for Loop
  • try-except-finally
  • Lists
  • Main List Methods
  • Dictionaries
  • Working with Dictionaries
  • Sets
  • Common Set Operations
  • Set Operations Examples
  • Finding Unique Elements in a List
  • Enumerate
  • Tuples
  • Unpacking Tuples
  • Functions
  • Dealing with Arbitrary Number of Parameters
  • Keyword Function Parameters
  • The range Object
  • Random Numbers
  • Python Modules
  • Importing Modules
  • Installing Modules
  • Listing Methods in a Module
  • Creating Your Own Modules
  • Creating a Runnable Application
  • List Comprehension
  • Zipping Lists
  • Working with Files
  • Reading and Writing Files
  • Reading Command-Line Parameters
  • Accessing Environment Variables
  • What is Functional Programming (FP)?
  • Terminology: Higher-Order Functions
  • Lambda Functions in Python
  • Example: Lambdas in the Sorted Function
  • Other Examples of Using Lambdas
  • Regular Expressions
  • Using Regular Expressions Examples
  • Python Data Science-Centric Libraries
  • Summary

Lab Exercises

Lab 1. Learning the Databricks Community Cloud Lab Environment
Lab 2. Learning PySpark Shell Environment
Lab 3. Understanding Spark DataFrames
Lab 4. Learning the PySpark DataFrame API
Lab 5. Processing Data in PySpark using the DataFrame API (Project)
Lab 6. Working with Pivot Tables in PySpark (Project)
Lab 7. Data Visualization and EDA in PySpark
Lab 8. Data Visualization and EDA in PySpark (Project)

We regularly offer classes in these and other cities. Atlanta, Austin, Baltimore, Calgary, Chicago, Cleveland, Dallas, Denver, Detroit, Houston, Jacksonville, Miami, Montreal, New York City, Orlando, Ottawa, Philadelphia, Phoenix, Pittsburgh, Seattle, Toronto, Vancouver, Washington DC.
US Inquiries / 1.877.517.6540
Canadian Inquiries / 1.877.812.8887