This example visualizes the Iris Dataset as a scatter plot, mapping petal length to the x-axis and sepal length to the y-axis. All data points are rendered as red circles using SVG. The code loads CSV data via `d3.csv`, scales the axes with `d3.scaleLinear` and `d3.extent`, and draws the axes using `d3.axisLeft` and `d3.axisBottom`. The visualization fills the browser window and uses a fixed margin layout.