Iris Scatter Plot
This interactive scatter plot visualizes the Iris dataset, displaying measurements of sepal and petal dimensions for three flower species. Users select which numeric attribute appears on the x- and y-axes through dropdown menus, and the visualization updates accordingly. Each point is colored by species using a d3.scaleOrdinal color scale, with a legend showing the species categories. The chart uses d3.scaleLinear for axes, d3.axisBottom and d3.axisLeft for gridlines, and renders marks as SVG circles.