This example visualizes the Iris Dataset as a scatter plot, mapping petal length to the x-axis and sepal width to the y-axis. Each data point is rendered as a circle using React components that leverage D3’s `scaleLinear` and `extent` functions for scaling. The code defines custom `AxisBottom` and `AxisLeft` components to generate ticks and labels, while `Marks` renders the circles with inline SVG titles for tooltips. The data is loaded asynchronously via D3’s `csv` parser.