This interactive parallel coordinate plot visualizes the Iris dataset, with each polyline representing a flower sample and colored by its class (setosa, versicolor, or virginica) using d3.scale.ordinal. Users can drag any of the four axis labels to reorder dimensions, triggering smooth transitions via d3.behavior.drag and transition.attrTween. The SVG rendering uses d3.svg.line and d3.svg.axis, with background polylines in light gray and foreground strokes in class-specific colors. A legend and title are embedded in the same SVG canvas.