Bandwidth Selection Demonstration

Old Faithful waiting times from Azzalini and Bowman (1990). Data documents waiting times (in minutes) for an eruption at Old Faithful geyser in Yellowstone National Park (WY). Data collected from 8/1-8/15/1985 (N = 299)
Alcohol by volume ratings (%) of top 250 beers as rated on BeerAdvocate.com. (N = 248)
PGA Tour driving distance statistics for 1986, 1996, 2006, and 2015 seasons. Note the bimodality of the distribution, as the 2006 and 2015 seasons mark significant departures from the technology of the 20th century. The titanium driver and improved golf ball technology have created many "bombers" off the tee. (N = 748)

Parameters for First Normal

Parameters for Second Normal

Parameters for First Gamma

Parameters for Second Gamma

Parameters for Third Gamma

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Bootstrap intervals are computationally intensive, so it may take a few seconds for the plot to update.