This interactive scatter plot visualizes the Iris dataset, mapping petal width against sepal length. It uses D3 v6 APIs such as `scaleLinear`, `scaleOrdinal`, `axisLeft`, and `axisBottom` to render axes, while `symbol` and `symbols` generate distinct markers for each iris species. The reusable `scatterPlot` function configures scales, margins, and encoding via method chaining. Data loads asynchronously from a GitHub Gist CSV, with numeric parsing applied to all measurements. SVG output adapts to the full viewport size.