This example visualizes the Iris dataset using a reusable scatter plot built with D3.js. It animates through different numeric attribute pairings on the x-axis every two seconds, while color-coded circles represent the three iris species—setosa, versicolor, and virginica—in yellow, purple, and green. The plot uses D3 scales, axes, and data joins to render SVG circles, with each mark’s size and position driven by sepal and petal measurements. The code includes a custom scatterPlot factory function to manage margins, scales, and axis updates.