This example displays a scatter plot of iris flower measurements, plotting sepal length against sepal width. The visualization uses a React component with D3.js v5’s `scaleLinear` for axis scaling and `extent` to compute data domains. SVG rendering is handled through React’s declarative elements, with axis components generating tick marks and labels. The data is loaded from a remote CSV file using D3’s `csv` function. Tooltips reveal the precise sepal width values for each circular mark when hovered.