Exploratory Data Analysis
1.3. EDA Techniques
1.3.3. Graphical Techniques: Alphabetic
|Symmetric, Long-Tailed Histogram
|Description of Long-Tailed
The above is a histogram of
the DZIUBA1.DAT data set.
The previous example contains a discussion of the distinction between short-tailed, moderate-tailed, and long-tailed distributions.
In terms of tail length, the histogram shown above would be characteristic of a "long-tailed" distribution.
|Recommended Next Step
|If the histogram indicates a symmetric, long tailed distribution, the recommended next step is to do a Cauchy probability plot. If the Cauchy probability plot is linear, then the Cauchy distribution is an appropriate model for the data. Alternatively, a Tukey Lambda PPCC plot may provide insight into a suitable distributional model for the data.