AI engineering glossary · NumPy pandas visualization

What is tidy data?

Tidy data (also called long format): A way of organising a table where each variable forms a column, each observation forms a row, and each type of observational unit forms its own table. Data in this form works smoothly with grouping, plotting and modelling tools.

Level: intermediateTopic: NumPy pandas visualization

Tidy data: an example

A table with columns city, month and sales, one row per city-month, is tidy; a table with one column per month is not.

Related terms

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Where you learn it

Tidy data is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

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