Did I get the data I asked for?

The U.S. Geological Survey (USGS) provides a web site where it is possible to view a map and download the data for recent earthquakes worldwide. The map at the right is a copy of the map as it appeared on Sunday March 31, 2013. While this is good and useful data it aptly illustrated the […]

Posted by Larry on April 1st, 2013 | 2 Comments Posted in Data Quality, Graphics Visualization

Record Lows on the Mississippi River

Recent news accounts (here, here, and here) have focused on the low water levels along the Mississippi River, the removal of bedrock from the river bottom, and the impact on barge traffic along the river south of St. Louis. A post over at rud.is asked “How Low Can It [The Mississippi River] Go?” The graphic […]

Posted by Larry on January 19th, 2013 | 2 Comments Posted in Data Quality, Graphics Visualization, Methodolgy Issues

Sleep Apnea and Cancer – Not so Fast

At the annual meetings of the American Thoracic Society a paper was presented that claimed a link between Sleep Apnea and the risk of getting Cancer. It gained national headlines with a claimed five fold risk dying from cancer for those suffering from the most sever forms of sleep apnea. Those with a moderate form […]

Posted by Larry on May 30th, 2012 | Comments Off on Sleep Apnea and Cancer – Not so Fast Posted in Data Quality, Methodolgy Issues, Small Differences, Where's the Data?
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