This example visualizes the Iris dataset as a scatterplot of sepal length against sepal width. Each flower is represented by a green circle with a native SVG tooltip showing the x-value on hover. The chart uses React components composed with D3 scales, rendering axes via custom `AxisBottom` and `AxisLeft` components that produce tick marks and labels. Data is loaded asynchronously with `d3.csv`, and linear scales map the measured values to pixel coordinates within fixed margins.