This example visualizes the Iris Dataset, plotting petal length and width for individual flowers while representing sepal dimensions through the horizontal and vertical radii (rx and ry) of each elliptical mark. The flowers are color-coded by species—blue for setosa, red for versicolor, and black for virginica. The scatter plot is rendered as an SVG using D3 v6, with data loaded via `d3.csv`, axes generated through `d3.axisLeft` and `d3.axisBottom`, and scales defined with `d3.scaleLinear` and `d3.extent`. The visualization fills the entire browser window.