This example visualizes the Iris dataset using a parallel coordinates plot, displaying four continuous measurements (sepal length, sepal width, petal length, petal width) as parallel axes. Lines represent individual flowers, colored by species (blue, orange, green) with a legend. Interactive dropdowns let users reorder the axes, and the plot redraws accordingly using `d3.csv`, `d3.scaleLinear`, `d3.scalePoint`, `d3.line`, and `d3.axisLeft`, rendering as SVG via React.