This interactive scatterplot visualizes Fisher's Iris dataset, showing how measurements of sepal length, sepal width, petal length, and petal width relate across three flower species. Radio buttons let users select which measurement appears on each axis, updating the plot and axis labels accordingly. The visualization uses D3.js v4 with an SVG rendering, employing `d3.scaleLinear` for axes and `d3.scaleOrdinal` for color mapping to distinguish species.