Building Machine Learning Systems with Python - Third Edition

The Iris dataset

The Iris dataset is a classic dataset from the 1930s; it is one of the first modern examples of statistical classification.

The dataset is a collection of morphological measurements of several iris flowers. These measurements will enable us to distinguish multiple species of flower. Today, species are identified by their DNA fingerprints, but in the 1930s, DNA's role in genetics had not yet been discovered.

The following four attributes of each plant were measured:

• Sepal length
• Sepal width
• Petal length
• Petal width

In general, we call the individual numeric measurements we use to describe our data features. These features can be directly measured or computed from intermediate data.

This dataset has four features. Additionally, ...