You can use PROC UNIVARIATE in Base SAS^® or PROC CAPABILITY in SAS/QC^® to test if a variable follows a continuous uniform distribution. A uniform distribution is a special case of a beta distribution with shape parameters α = β = 1. In any of the statements that accept distribution options, specify the beta-options ALPHA=1 and BETA=1 in the BETA distribution option to test for uniformity. Use the THETA= and SIGMA= options to specify the lower and upper bounds of support. For example, the following code tests if the variable X is distributed U(10,25):

     proc univariate data=dataset;
        var x;
        histogram x / beta(ALPHA=1 BETA=1 THETA=10 SIGMA=15);
        run;

Operating System and Release Information

Product Family	Product	System	SAS Release
			Reported	Fixed*
SAS System	SAS/QC	All	n/a

* For software releases that are not yet generally available, the Fixed Release is the software release in which the problem is planned to be fixed.

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You can use PROC UNIVARIATE or PROC CAPABILITY to perform a goodness-of-fit test for the uniform distribution

Type:	Usage Note
Priority:	low
Topic:	SAS Reference ==> Procedures ==> CAPABILITY Analytics ==> Distribution Analysis SAS Reference ==> Procedures ==> UNIVARIATE

Date Modified:	2020-06-22 10:27:56
Date Created:	2002-12-16 10:56:44