This scatter plot visualizes the Iris dataset, mapping petal width against sepal length and distinguishing species by symbol type. Built as a reusable chart module, it uses d3.scaleLinear for axes, d3.scaleOrdinal with d3.symbols for categorical markers, and d3.axisLeft/axisBottom for ticks. The SVG rendering fills the viewport, with data loaded via d3.csv from a GitHub Gist and parsed into numeric fields. The chart’s dimensions, margins, and accessor functions are configurable through a fluent API, demonstrating a modular approach to D3 visualization.