Type of Data

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Table of Contents

• Major types of data
  • Numerical Data
  • Categorical Data
  • Ordinal Data

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Data type

Major types of data

• Numerical
• Categorical
• Ordinal

Numerical Data

• Represent quantitative measurement example: heights - 1.6m, 2.0m
• Discrete data example: age - 20,50
• Continuous data Infinite number of possible values example: Temperature sensor

Categorical Data

• The data doesn’t have mathematical meaning example: gender, race

Ordinal Data

• A mixture of categorical and numerical data example: movie rating - one star is low rating compared to 5 star rating