This visualization presents a 4×4 scatter plot matrix comparing all numeric fields of the classic Iris dataset, with each point colored by species using a categorical scale. Written in vanilla JavaScript with d3.v6, it renders SVG charts by leveraging `d3.csv` for parsing, `d3.scaleLinear` for axes, and `d3.scaleOrdinal` with `schemeSet3` for color encoding. Each off-diagonal cell plots a pairwise comparison, while diagonal cells display field titles, and axes are generated via `d3.axisLeft` and `d3.axisBottom`.