This example demonstrates a reusable scatter plot that visualizes the Iris dataset, mapping sepal length and width while using different D3 symbols (circles, crosses, diamonds, and squares) to distinguish flower species. The visualization renders as an SVG and leverages d3.scaleLinear for axes, d3.scaleOrdinal for symbol types and colors, and d3.symbol to generate the mark paths. The chart is built with a custom scatterPlot function that accepts configurable accessors and margin settings, making it adaptable for other datasets and variables.