This example presents an interactive scatter plot of the Iris dataset, cycling through different x-axis variables (petal width, sepal width, petal length, sepal length) at intervals to explore relationships with sepal length on the y-axis. The visualization uses D3.js v6 within a React environment, rendering with SVG and animation. The reusable `scatterPlot` function leverages D3 scales, axes, and data joins, while the main script loads CSV data, maps species to colors (red, violet, orange), and includes a custom legend with labels and points.