This parallel coordinate plot displays the four measurements of the Iris dataset (sepal length, sepal width, petal length, and petal width) across a single chart, with each flower’s values connected by a polyline. The lines are colored by the species using `scaleOrdinal` and `schemeCategory10`. Users can drag the vertical axes horizontally to reorder the dimensions, updating the paths and axis positions via `d3.drag` and `d3.scalePoint`. The chart renders to SVG using D3 v5, with axes built by `axisLeft` and data loaded from a CSV.