This example presents the Iris dataset as a reusable scatter plot where each species is encoded with a distinct symbol shape. The visualization maps petal width to the x-axis and sepal length to the y-axis, with data points rendered as SVG paths. The code implements a reusable `scatterPlot` function using D3 v6 APIs including `scaleLinear`, `scaleOrdinal`, and `symbol` to generate shapes, while `axisLeft` and `axisBottom` create the axes. The plot is sized to the full window, fetching data from a remote CSV file.