Exploratory data analysis (colab notebook)

Proceedings from a (2025-11-16) lecture about exploratory data analysis (EDA):

(accessible via link since Google Colab does not allow posting notebooks in an iframe)

Topics covered

• EDA
  • business understanding
    • the concept of "feature"
  • data understanding (+ data collection)
    • the concept of "casting"
  • data cleaning (i.e. data transformation)
    • removing irrelevant data
    • removing outliers
    • handling missing values
      • the concept of "imputing"
    • handling invalid data
    • feature scaling (standardizing scores)
  • data visualization
  • model building
  • value prediction
  • model testing
    • univariate analysis
    • bivariate analysis
    • multivariate analysis