This interactive scatterplot visualizes the Iris dataset, allowing users to compare measurements like petal and sepal width or length, with the option to map species to an axis. The visualization supports animated transitions between axis selections via D3’s `transition` and delayed updates. It uses `d3.csv` for data loading, `scaleLinear` and `scalePoint` for quantitative and categorical axes, and custom reusable modules (`scatterPlot.js`, `menu.js`) built on D3’s selection and dispatch APIs. The SVG renders semi-transparent circles with axis labels and menus for control.