This example shows a scatter plot of the Iris Dataset, mapping petal length against sepal width. Built with React and D3 v5, it renders SVG circles using `scaleLinear` scales, `extent`, and `csv` for data loading. The axes are composed from React components (`AxisBottom`, `AxisLeft`) with custom tick formatting via `format('.2s')`. Each circle includes a native SVG `<title>` tooltip showing the petal length value.