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Activity Number: 247
Type: Contributed
Date/Time: Monday, August 1, 2016 : 2:00 PM to 3:50 PM
Sponsor: Section on Statistical Graphics
Abstract #319695 View Presentation
Title: What Can We Learn from Exact Calculation of Histograms?
Author(s): James Weber*
Companies:
Keywords: Histograms ; MISE ; Calculation Error ; Optimization ; Shape Level Sets ; Exact Calculations
Abstract:

Defining "good" histograms often has focused on asymptotic results regarding bin width, as well as integrated measures of error, such as MISE. MISE leads to a statistical objective function to optimize with data to obtain a "best" histogram density and equivalent frequency histogram. Bin edge discontinuity significantly interferes with achieving good approximations. However exact MISE and other kinds of good histograms can be obtained so that explicit error in determining estimated MISE histograms for small to moderate samples size can be considered. That is, uniform bin width histograms are so easy to construct that apparently little thought has been given to exact calculation of, for example, MISE error minimizing histograms. Exact calculations show that reasonable approximations are so far away from exact (from the perspective of only shape) that exact should be used for any histogram wanted to satisfy statistical criteria such as MISE, maximum likelihood, method of moments, shape stability, min chi-squared, other least squares, etc.


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