This scatterplot matrix visualizes the Pima Indians Diabetes dataset, comparing five quantitative attributes (Glucose, BMI, Age, Pregnancies, and BloodPressure) in a lower-triangular grid of subplots. Each point represents a patient, colored blue for non-diabetic and red for diabetic, with circles and crosses distinguishing outcomes. Built with D3 v7, the visualization uses `scaleOrdinal` for color and symbol scales, `axisBottom` and `axisLeft` for axes, and `csvParse` to load the data. Data is filtered to exclude invalid zero values before being reshaped into a long format for small-multiple rendering.