## Documentation Example 4 for PROC FREQ

```/****************************************************************/
/*          S A S   S A M P L E   L I B R A R Y                 */
/*                                                              */
/*    NAME: FREQEX4                                             */
/*   TITLE: Documentation Example 4 for PROC FREQ               */
/* PRODUCT: STAT                                                */
/*  SYSTEM: ALL                                                 */
/*    KEYS: frequency tables, binomial proportions,             */
/*    KEYS: binomial confidence limits,                         */
/*    KEYS: Agresti-Coull and Wilson (score) confidence limits, */
/*    KEYS: exact (Clopper-Pearson) confidence limits,          */
/*    KEYS: equivalence test, equivalence margin,               */
/*    KEYS: two one-sided tests (TOST)                          */
/*   PROCS: FREQ                                                */
/*    DATA:                                                     */
/*                                                              */
/* SUPPORT: sasdlw                UPDATE: January 28, 2011      */
/*     REF: PROC FREQ, Example 4                                */
/*    MISC:                                                     */
/****************************************************************/
/* Binomial Proportions ----------------------------------------*/
data Color;
input Region Eyes \$ Hair \$ Count @@;
label Eyes  ='Eye Color'
Hair  ='Hair Color'
Region='Geographic Region';
datalines;
1 blue  fair   23  1 blue  red     7  1 blue  medium 24
1 blue  dark   11  1 green fair   19  1 green red     7
1 green medium 18  1 green dark   14  1 brown fair   34
1 brown red     5  1 brown medium 41  1 brown dark   40
1 brown black   3  2 blue  fair   46  2 blue  red    21
2 blue  medium 44  2 blue  dark   40  2 blue  black   6
2 green fair   50  2 green red    31  2 green medium 37
2 green dark   23  2 brown fair   56  2 brown red    42
2 brown medium 53  2 brown dark   54  2 brown black  13
;
proc freq data=Color order=freq;
tables Eyes / binomial(ac wilson exact) alpha=.1;
tables Hair / binomial(equiv p=.28 margin=.1);
weight Count;
title 'Hair and Eye Color of European Children';
run;

```