This interactive parallel coordinate plot visualizes the Iris dataset, showing each flower’s measurements across four selectable axes, with lines colored by species (setosa, versicolor, virginica). Users change variables via dropdown menus, triggering a d3 transition that animates the polylines to new positions. The visualization uses D3 v7 with d3.scaleLinear, axis generators (axisLeft, axisBottom), d3.csv for data loading, and SVG rendering.