This scatter plot visualizes the Iris dataset, showing petal length against petal width with points colored by species (setosa in blue, versicolor in red, virginica in green). It also reads sepal length and width values into each circle’s attributes, though the visual radius remains fixed. Built with React and D3 v6, the code uses `csv` to load data, `scaleLinear` and `extent` for scales, and `axisLeft`/`axisBottom` for axes, rendering circles and axis labels as SVG elements sized to the full window.