This radial tree visualization displays the categorization of vaping-related tweets, showing three primary topic groups—Marketing, Personal, and Other—each broken down by sentiment counts for positive, negative, and neutral classifications. The visualization uses d3.v4’s `d3.cluster` layout to position nodes in a circular hierarchy, with labels rotated along the circumference and adjusted for readability. The SVG rendering includes zoom support via `d3.zoom` and uses a square-root scale for font sizes based on node depth, with data loaded from a JSON file.