This interactive scatter plot displays Fisher’s Iris dataset with colored points for three species—setosa, versicolor, and virginica—and lets users switch both the x- and y-axis features among sepal and petal length and width. It uses d3.csv to load the data, d3.scaleLinear and d3.axisBottom/axisLeft for scales and axes, and d3.select to update the SVG on button clicks. A custom button panel built with D3 selections highlights selected axes, while a legend identifies each species.