This example displays a scatter plot of the Iris dataset, mapping petal length and width on the axes while coloring each point by iris species. The code loads CSV data from a GitHub repository, parses numeric fields, and renders SVG circles using D3 v6 scales and axes. It implements custom color mapping for setosa, versicolor, and virginica species, with axis labels styled separately, demonstrating D3’s `scaleLinear`, `extent`, `axisLeft`, `axisBottom`, and data-join pattern.