Sunday, September 19, 2010

Medians and Percentiles

Originally posted on SAT, MARCH 24, 2007 AT 08:24

Here's is a really nice visualisation in the annual compensation report posted on aiga.org.





I like the use of bar graphic to communicate the relative postion of the ranges of salaries compared as well as indicating the median. The tabluar data is similarly information rich showing not only the median value, but the 25th and 75th percentiles, respectively.



This is a great way to communicate a lot of information. The use of a platial axis to represent the rankings and relations of a range of values is really interesting. It's nice to have a bit more richness to add to non-goal bearing metrics (honestly, trend is usually not so interesting for smaller grain metrics -- do you really care if your sales reps' call-to-opportunity ratio is up .0003% from yesterday?





This map, not so much. Maps are great, but the bubble graph is a little hard to read. It's hard to tell the difference between the sizes of the bubbles, especially in the middle of the range. A tool tip with a number would be clearer

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