This example visualizes the Iris Dataset using a scatter plot where each species is represented by a different D3 symbol. The code uses `d3.csv` to load the data, `scaleLinear` for x and y axes, and `scaleOrdinal` to map species to symbol types from `d3.symbols`. A reusable `scatterPlot` function encapsulates the chart, rendering marks as SVG `path` elements via `symbolGenerator` and including `axisLeft` and `axisBottom` for scales. The plot fills the browser window using `window.innerWidth` and `window.innerHeight`.