Base SAS 9.1.3 Procedures Guide - Acsu Buffalo

80 Chapter 2. The FREQ Procedure
Using TABLES Statement Options with the EXACT Statement
If you use only one TABLES statement, you do not need to specify options in the
TABLES statement that are identical to options appearing in the EXACT statement.
PROC FREQ automatically invokes the corresponding TABLES statement option
when you specify the option in the EXACT statement. However, when you use multiple
TABLES statements and want exact computations, you must specify options in
the TABLES statement to compute the desired statistics. PROC FREQ then performs
exact computations for all statistics that are also specified in the EXACT statement.
OUTPUT Statement
OUTPUT < OUT= SAS-data-set > options ;
The OUTPUT statement creates a SAS data set containing statistics computed by
PROC FREQ. The variables contain statistics for each two-way table or stratum, as
well as summary statistics across all strata.
Only one OUTPUT statement is allowed for each execution of PROC FREQ. You
must specify a TABLES statement with the OUTPUT statement. If you use multiple
TABLES statements, the contents of the OUTPUT data set correspond to the last
TABLES statement. If you use multiple table requests in a TABLES statement, the
contents of the OUTPUT data set correspond to the last table request.
For more information, see the section “Output Data Sets” on page 148.
Note that you can use the Output Delivery System (ODS) to create a SAS data set
from any piece of PROC FREQ output. For more information, see Table 2.11 on page
159 and Chapter 14, “Using the Output Delivery System.” (SAS/STAT User’s Guide)
You can specify the following options in an OUTPUT statement.
OUT=SAS-data-set
names the output data set. If you omit the OUT= option, the data set is named DATAn,
where n is the smallest integer that makes the name unique.
options
specify the statistics that you want in the output data set. Available statistics are those
produced by PROC FREQ for each one-way or two-way table, as well as the summary
statistics across all strata. When you request a statistic, the OUTPUT data set contains
that estimate or test statistic plus any associated standard error, confidence limits, p-
values, and degrees of freedom. You can output statistics by using group options
identical to those specified in the TABLES statement: AGREE, ALL, CHISQ, CMH,
and MEASURES. Alternatively, you can request an individual statistic by specifying
one of the options shown in the following table.