This example displays a scatter plot of iris flower measurements, mapping sepal length to the x-axis and petal length to the y-axis. Each species is distinguished by a different symbol shape, with a legend identifying the species categories. The visualization is built using D3 v7, employing `scaleLinear` for positioning, `scaleOrdinal` for shape encoding, and `symbolGenerator` to render distinct markers. Data is loaded asynchronously from a remote CSV file and parsed using `csvParse`.