This example demonstrates a basic D3 starter chart that uses a small static dataset of three samples to create a bubble chart. The visualization displays each sample as a circle, with its vertical position determined by its value and the circle size set by a predefined radius. The chart includes an x-axis with categorical labels and a y-axis with a linear scale. The code loads data from a CSV file using `d3.csv`, but the actual chart is built from the hardcoded `dataset` array, rendering SVG elements with `d3.scaleBand` and `d3.scaleLinear`.