Distribution Analysis: Distributional Modeling

Overview of the Distributional Modeling Analysis

You can use the Distributional Modeling analysis to fit parametric distributions to univariate data. You can estimate parameters for the fitted distributions, compute goodness-of-fit statistics, and display quantiles of the fitted distributions.

You can use this analysis to create a histogram that is overlaid with up to five density curves. You can create a quantile-quantile (Q-Q) plot to help you determine how well a given distribution fits the data. You can also create a plot of the empirical cumulative distribution function.

You can run a Distributional Modeling analysis by selecting AnalysisDistribution AnalysisDistributional Modeling from the main menu. When you request distributional modeling, SAS/IML Studio calls the UNIVARIATE procedure in Base SAS software. See the UNIVARIATE procedure documentation in the Base SAS Procedures Guide for additional details.