What’s New in the Base SAS 9.4 Statistical Procedures


FREQ Procedure Enhancements

The new AGREE(PABAK) and AGREE(AC1) options produce the prevalence-adjusted bias-adjusted kappa coefficient and Gwet’s AC1 agreement coefficient, respectively. The AGREE(KAPPADETAILS) option provides the following statistics: observed agreement and chance-expected agreement components of the simple kappa coefficient, maximum possible kappa, prevalence index, and bias index. The AGREE(WTKAPDETAILS) option provides the observed agreement and chance-expected agreement components of the weighted kappa coefficient.

You can now specify nonzero null values for the simple and weighted kappa tests by using the AGREE(NULLKAPPA=) and AGREE(NULLWTKAP=) options. You can specify the degrees of freedom for Bowker’s test of symmetry by using the AGREE(DFSYM=) option.

When you specify any of the AGREE options that are new in SAS 9.4M4, PROC FREQ displays all tables of AGREE statistics in tabular format (instead of factoid format); to display preexisting tables in their original factoid format, you can specify the AGREE(TABLES=RESTORE) option.