This example displays a scatter plot of the Iris dataset, positioning points by petal length on the x-axis and petal width on the y-axis. Circles are colored by species (skyblue for Setosa, lightgreen for Versicolor, orange for Virginica), with a legend below. The visualization uses d3.csv to load the data, d3.scaleLinear with d3.extent for scales, and d3.axisLeft and d3.axisBottom for axes. Rendering occurs through SVG elements appended to the body, with the plot sized to the full browser window.