This fork of the xMR char calculator v3 alters the initial condition for the moving range average, demonstrating how control chart bounds shift under different starting assumptions. It computes upper and lower bounds using a moving range formula, segmenting data into 12-point windows and detecting breakpoints where values exceed sigma thresholds. The visualization relies on D3 v6’s `select`, `csv`, `mean`, and `sum` APIs, with the dataset embedded as an array in the code. A line chart would typically display the bounds, though the current script only logs the calculated arrays to the console.