This example presents a table of margin values for four locations, using horizontal bars to compare positive and negative results. Each row shows a location name beside a bar extending left or right from a central zero line, colored dark orange for negative values and steel blue for positive ones. A third column summarizes each entry with a label like “Humpty” or “Dumpty” and the absolute value. Built with D3 v3, it uses `d3.scale.linear`, `d3.tsv` for data loading, and SVG elements such as `rect` and `line` to draw the bars and gridlines.