The correlation matrix visualizes relationships among eight physical measurements of abalone, split into three separate panels for male, female, and infant groups. Each panel uses color-coded text for correlation coefficients above the diagonal and proportional circles below it, with black labels on the diagonal. The code loads data from `abalone.csv`, computes correlations with the `jz.arr.correlationMatrix` utility, and renders SVG elements using `d3.scaleLinear`, `d3.scalePoint`, and `d3.scaleSqrt`. Distinct color ranges per sex highlight varying correlation strengths across the groups.