An interactive parallel coordinate plot displays the Iris dataset, with each flower’s measurements drawn as a polyline across four vertical axes. The axes correspond to sepal length, sepal width, petal length, and petal width, and users can reassign these columns via dropdown menus. Lines are colored by species—setosa, versicolor, or virginica—using a categorical color mapping. The visualization uses the d3 library’s `scalePoint`, `scaleLinear`, `axisLeft`, and `line` functions, with SVG rendering. Data is loaded via `d3.csv` from a remote URL.