Select Continuous or Discrete.
Continuous distributions will be sorted in ascending order using the Anderson Darling
goodness of fit statistic.
Discrete distributions will be sorted with the Chi-Square goodness of fit statistic.
P-Values and distribution parameter values are also reported for each distribution.
Check Exclude Threshold Distributions to run the batch distribution fit
without estimation of distributions that have a Threshold parameter. The default is
checked because it is much faster. Note, however, that if the data contains negative
values then Threshold distributions will be included in the batch fit. Tip: If Threshold distributions are included, and two candidate
distributions with similar Anderson Darling statistic values are being considered, one
with a Threshold and one without, choose the simpler model without the Threshold. For
further details on Threshold distributions and estimation, see Appendix: Distribution Fitting Threshold Distributions.
Select All Distributions or Automatic Best Fit.
Automatic Best Fit will return the distribution with the lowest Anderson-Darling or
Chi-Square statistic.
If distribution fitting has been performed, the Select Stored Distribution Fit option
will become available in the
Input Distribution dialog for selection of variable name(s) and stored
distribution(s). The input distribution parameter values will automatically be
populated.
