This example visualizes the Iris dataset as a scatter plot, mapping sepal length along the x-axis and petal length along the y-axis. The visualization uses distinct shapes to represent the three species of iris flowers, with a shape legend positioned to the right of the plot. Built with d3.v7, the code leverages d3.csvParse to load data from a GitHub repository, d3.scaleLinear for axis scaling, and d3.scaleOrdinal with d3.symbolsFill to assign different symbol types to each species. The SVG rendering includes custom axis labels and a shape legend created through d3 selection joins.