This interactive scatter chart displays the Iris dataset, plotting sepal and petal measurements against each other with points colored by species. Users can dynamically switch which measurement appears on each axis via dropdown menus. Built with React and D3 v7, the visualization uses d3.scaleLinear for axes, d3.scaleOrdinal for categorical color mapping, and SVG circles for rendering data points. The code demonstrates reusable axis and mark components with React state management.