This example visualizes YouTube channel analytics across weekly data, combining bar charts for total views with an overlaid line graph for watch time in hours, using dual y-axes to compare the metrics. The SVG chart is rendered with D3 v7, and bars animate their height upward via a transition, while the line draws itself using stroke-dasharray and the curveMonotoneX interpolator. Tooltips provide detailed per-week values, and the dataset is loaded from a remote CSV file.