The Basics of Data

Raw Data, Cases, Variables, and Metadata

• Raw Data
• Case
• Variable
• Metadata for a Data Set

Data Types

• Overview of Data Types
• Categorical Data
• Discrete Data
• Numeric Data
• Nominal Data
• Ordinal Data

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Variable Sets

• Variable Sets
• Variable Set Structure
• Binary - Multi Variable Set
• Nominal - Multi Variable Set
• Ordinal - Multi Variable Set
• Numeric - Multi Variable Set

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Poorly Shaped Data

• The Desired Shape of Data: The Rectangle
• Too Wide Data File
• Multiple Variables in a Single Column
• Multiple Tables, Rather Than a Single Table
• Messy Rectangles