Map Projections
This parallel coordinates plot compares four numeric indicators—water access, life expectancy, schooling, and country—across a dataset of countries. The visualization uses the `d3.svg.line` API to draw polylines, where each axis represents a dimension with its own scale. The chart includes interactive highlighting, with mouseover and mouseout events, to emphasize individual country profiles against the others. The data is loaded from a tab-separated file and rendered using D3 v3 with SVG output.