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CodeSignal

Mastering Data Wrangling with tidyr

via CodeSignal

Overview

Gain expertise in reshaping and tidying data using the tidyr package. This course will equip you with the skills to transform data into a tidy format, manage missing values effectively, and pivot data frames seamlessly. By the end of this course, you will be proficient in preparing data for comprehensive analysis, enabling you to handle real-world data challenges with confidence.

Syllabus

  • Lesson 1: Gather and Spread
    • Reshape Data with tidyr
    • Adding More Subjects Data
    • Fix Data Gathering and Spreading
    • Fill in the Data Gaps
    • Master Data Reshaping Techniques
  • Lesson 2: Separate and Unite
    • Separate and Combine Columns in R
    • Change the Separator in Unite
    • Fix Column Splitting and Combining
    • Splitting and Combining Superhero Data
    • Splitting and Combining Superhero Data
  • Lesson 3: Drop and Replace
    • Handling Missing Data in R
    • Replace Missing Values with Medians
    • Fix Missing Value Handling in R
    • Handling Missing Values with Median
    • Fruit Data Cleanup
  • Lesson 4: Nest and Unnest
    • Nesting and Unnesting Data Frames
    • Add a Department Column
    • Fix Nesting Error in Data
    • Nesting and Unnesting Superhero Stats
    • Nesting and Unnesting Data
  • Lesson 5: Tidying Data for Comprehensive Analysis
    • Data Tidying in Action
    • Change Data Unification
    • Fix the Data Tidying Process
    • Tidy Up Musician Data
    • Write a Tidy Superhero Data Frame

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