Example 83.2 Multiway Tables (Domain Analysis)

Continuing to use the SIS_Survey data set from the section Getting Started: SURVEYFREQ Procedure, this example shows how to produce multiway tables. The following PROC SURVEYFREQ statements request a table of Department by SchoolType by Response for the student information system survey:

   proc surveyfreq data=SIS_Survey;
      tables  Department * SchoolType * Response
              SchoolType * Response;
      strata  State NewUser;
      cluster School;
      weight  SamplingWeight;
   run;

The TABLES statement requests a multiway table with SchoolType as the row variable, Response as the column variable, and Department as the layer variable. This request produces a separate two-way table of SchoolType by Response for each level of the variable Department. The TABLES statement also requests a two-way table of SchoolType by Response, which totals the multiway table over both levels of Department. As in the previous examples, the STRATA, CLUSTER, and WEIGHT statements provide sample design information, so that the analysis will be done according to the design used for this survey.

Output 83.2.1 displays the multiway table produced by PROC SURVEYFREQ, which includes a table of SchoolType by Response for Department = 'Faculty' and for Department = 'Admin/Guidance'. This is equivalent to a domain or subpopulation analysis of SchoolType by Response, where the domains are Department = 'Faculty' and Department = 'Admin/Guidance'.