Thursday, January 29, 2009
The Wall Street Journal published an interactive map by U.S. state showing the year-over-year unemployment trend for December. They've tied the map to a line graph of unemployment figures from each of the preceding months of December back to 2004. Other months can be selected as well and the map will change accordingly. Other, full year-over-year figures can be displayed as well, also back to 2004. They've done a good job with this implementation. However, the version published in the print edition is extremely hard to interpret as it shows unemployment by state as a thematic map in shades of gray. I can distinguish four shades; but not the five shades of gray used in the map.