Mark Chesney

Mark Chesney

Seattle, WA

Skills & Experience

  • Job Title

    Data Analyst

  • Spoken Languages

    • English
    • Spanish

137 Achievements

  • Harnessing the Power of Objects
  • Build a Spreadsheet
  • Spreadsheet Best Practices
  • Spreadsheet Functions & Formulas
  • Getting Started With Spreadsheets
  • Introducing Spreadsheets
  • Big Data at Netflix
  • Where and How Big Data Is Used
  • Installing WordPress Locally
  • Regular Expressions
  • Additional Scraping Tasks
  • What is Big Data
  • A World Full of Spiders
  • Handling Bad Data
  • HTML: The Structural Foundation of Web Pages and Applications
  • Bug Reporting
  • Getting Familiar with HTML and CSS
  • Exploring pandas
  • Meet pandas
  • Executing Tests
  • Practicing Data Visualization in Excel
  • Chart Formatting and Layout
  • When To Use What Type of Chart
  • Error Checking
  • Pivot Tables
  • Writing Manual Test Cases
  • Demystifying the Portfolio
  • Why We Test
  • Recursion and Space Complexity
  • MASH JavaScript
  • Day 3: Getting Creative
  • Conditional Formatting
  • LOOKUP Functions
  • Introduction To Data Visualization
  • Day 2: Advanced Selecting
  • Day 1: Joining Tables
  • Orientation: Selecting Data
  • Data Eruption
  • Subqueries
  • Set Operations
  • Joining Table Data with SQL
  • Selecting Relevant Data
  • “Clean” or “Dirty” Data
  • Chart Toppers
  • Getting Started with Data Visualization
  • Table Relationships
  • Database Keys
  • Database Normalization
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • MASH CSS
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • The Data Analysis Process
  • Getting to Know Your Data
  • Introducing Data Analysis
  • Merging
  • Algorithms in Code
  • MASH HTML
  • Branches
  • The Lambda Lambada
  • WWW
  • Treehouse Club - CSS
  • The Internet
  • Treehouse Club - JavaScript
  • Computer Basics
  • Computer Languages
  • Welcome to the Treehouse Club
  • Functional Workhorses
  • What Is WordPress?
  • Functional Rules
  • Introducing Data Scraping
  • Array Programming
  • Array Organization
  • Meet NumPy
  • Workflows
  • Time Complexity
  • Covering Your Bases
  • Merging
  • Working By Yourself
  • Be Assertive!
  • What Is Testing?
  • Gettin' CRUD-y With It
  • Branches
  • Working With Remote Repositories
  • Getting Started With Git
  • Finding the Data You Want
  • Getting Data from a Database
  • Why Version Control Matters
  • Our Diary App
  • GitHub and Other Remote Repositories
  • Meet Peewee
  • Data, Databases and SQL
  • Managing Committed Files
  • First Commits
  • Timezones
  • Hello, GitHub!
  • Math Quiz App
  • Dates and Times
  • Playing a Counting Game
  • Writing a Classifier
  • Introduction to Machine Learning
  • Machine Learning Vocabulary
  • Dice Roller
  • Installing Programs
  • Python Regular Expressions
  • Environment and Redirection
  • Buggy Logs
  • Cleaner Code
  • Console Processes
  • Console Users and Permission
  • Python: Advanced Objects
  • Python: Inheritance
  • Moving Around in the Console
  • Python: Instant Objects
  • Dungeon Game 2
  • Meet Objects
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Python Sets
  • Python Tuples
  • Python Dictionaries
  • Python Slices
  • Python Lists
  • Build an Application
  • Using Lists
  • Meet Lists
  • All Together Now
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • Newbie