This D3.js example visualizes the Iris Dataset with an animated scatter plot that cycles through different numeric attributes every two seconds. The plot maps petal width and sepal length onto the x and y axes, using `d3.scaleLinear` for scaling and `axisLeft`/`axisBottom` for tick marks. Each point is rendered as an SVG circle with a fixed radius, and the axes update dynamically as the displayed column changes. The animation loops through petal width, sepal width, petal length, and sepal length, demonstrating how the data distribution shifts across dimensions.