This interactive parallel coordinate plot visualizes the Iris dataset, using D3.js v4 to draw polylines across four axes representing sepal and petal measurements. Each of the three Iris species is color-coded, and hovering over any line highlights all flowers of that class while dimming the rest. The visualization uses `d3.scaleLinear` and `d3.scalePoint` for positioning, `d3.line` for the polylines, and `d3.axisLeft` for the categorical axes. Users can drag any axis horizontally to reorder the dimensions, which triggers a redraw of lines and axes, with the interaction handled by a custom drag event.