This example demonstrates how D3’s stack layout transforms raw data by computing baseline offsets. It shows a table of world religious populations, where each row’s `y0` and `y` values are added through cumulative summing. The code uses `d3.layout.stack()` with a custom `y` accessor and `values` function, then outputs the result as JSON in a `<pre>` element. The data comes from `religionWorldTotals.csv`, parsed via `d3.csv`, and the visualization renders the transformed structure as text for inspection.