This fork of a reusable scatter plot displays the Iris dataset, mapping petal width against sepal length and encoding species with different symbol shapes. The code uses d3.csv to load the data, d3.scaleLinear for axes, and d3.scaleOrdinal to assign symbols from d3.symbols. It renders SVG paths with a d3.symbol generator sized via the `size` property. Axis labels use d3.axisLeft and d3.axisBottom, with a margin object controlling layout.