This example visualizes the Iris dataset using a scatter plot, showing the relationship between sepal length and sepal width. The plot encodes each flower as a point, with the species variable available in the data but not directly colored in the chart. The code uses Chart.js to render the scatter plot, pulling data from the `iris-dataset` package. It also includes a custom D3-based viz module that builds axes and circles with `scaleLinear`, though the primary rendering relies on Chart.js's scatter type.