This interactive parallel coordinate plot visualizes the classic Iris dataset, showing four floral measurements for three species. Each semi-transparent polyline represents one sample, colored by species (orange for setosa, teal for versicolor, purple for virginica), with draggable axes that reorder via `d3.drag` and animated transitions. A dropdown toggles the y-axis scale between a fixed union range (0–8) and per-axis extents computed with `d3.extent`. The SVG renders axes via `d3.axisLeft` and lines via `d3.line`, with species colors mapped through a custom function.