This example presents a reusable scatter plot that visualizes retail sales data from a supermarket dataset. The plot animates by cycling between two variables—Quantity and Price—on the x-axis every four seconds, while the y-axis remains Price. Data points are colored by product category (blue for Clothing, purple for Gadgets, orange for Appliances). Built using D3 v6, it leverages scaleLinear, axisLeft, axisBottom, and csv loading, with SVG circles for rendering and a setInterval-driven animation.