This example visualizes the classic IRIS dataset with a scatter plot mapping petal length and width. Each point is colored by species, with setosa in sky blue, versicolor in light green, and virginica in orange. The code uses D3 v6 methods such as `d3.csv` for data loading, `d3.scaleLinear` and `d3.extent` for scales, and `d3.axisLeft` and `d3.axisBottom` for axes. The visualization renders as SVG circles, with axis labels styled via D3 text elements.