The UNIVARIATE Procedure

Example 4.2 Calculating Modes

An instructor is interested in calculating all the modes of the scores on a recent exam. The following statements create a data set named Exam, which contains the exam scores in the variable Score:

data Exam;
   label Score = 'Exam Score';
   input Score @@;
   datalines;
81 97 78 99 77 81 84 86 86 97
85 86 94 76 75 42 91 90 88 86
97 97 89 69 72 82 83 81 80 81
;

The following statements use the MODES option to request a table of all possible modes:

title 'Table of Modes for Exam Scores';
ods select Modes;
proc univariate data=Exam modes;
   var Score;
run;

The ODS SELECT statement restricts the output to the "Modes" table; see the section ODS Table Names.

By default, when the MODES option is used and there is more than one mode, the lowest mode is displayed in the "BasicMeasures" table. The following statements illustrate the default behavior:

title 'Default Output';
ods select BasicMeasures;
proc univariate data=Exam;
   var Score;
run;

The default output displays a mode of 81 and includes a note regarding the number of modes; the modes 86 and 97 are not displayed. The ODS SELECT statement restricts the output to the "BasicMeasures" table; see the section ODS Table Names.

A sample program for this example, uniex02.sas, is available in the SAS Sample Library for Base SAS software.