This example demonstrates loading of CSV data, which is then quantized into a diverging color scale. The values are visualized as colored cells per day. Days are arranged into columns by week, then grouped by month and years. Colors by Cynthia Brewer. Layout inspired by Rick Wicklin and Robert Allison. Dow Jones historical data copyright Yahoo! Finance or independent data provider; fair use for educational purposes.
Edited to play with Traffic Injury Data from Berlin for the period 2008-01-01 - 2013-01-31 Source for the csv: Amt für Statistik Berlin Brandenburg