This example renders the classic Iris flower dataset as a scatter plot, mapping petal length on the x-axis and sepal length on the y-axis using D3 scales and SVG circles. It loads the CSV with `d3.csv`, parses numeric fields, and draws axes with `d3.axisLeft` and `d3.axisBottom`. The visualization fills the browser window, with tick labels styled to a larger font size for readability.