PROC SURVEYREG Statement

The SURVEYREG Procedure

PROC SURVEYREG Statement

PROC SURVEYREG < options >;

The PROC SURVEYREG statement invokes the procedure. You can specify the following options in the PROC SURVEYREG statement.

ALPHA= $\alpha$: sets the confidence level for confidence limits. The value of the ALPHA= option must be between 0.0001 and 0.9999, and the default value is 0.05. A confidence level of $\alpha$ produces $100(1 - \alpha)$ % confidence limits. The default of ALPHA=0.05 produces 95% confidence limits. If $\alpha$ is between 0 and 1 but outside the range of 0.0001 to 0.9999, the procedure uses the closest range endpoint. For example, if you specify ALPHA=0.000001, the procedure uses 0.0001 to determine confidence limits.
DATA=SAS-data-set: specifies the SAS data set to be analyzed by PROC SURVEYREG. If you omit the DATA= option, the procedure uses the most recently created SAS data set.
NOPRINT: suppresses the display of all output. Note that this option temporarily disables the Output Delivery System (ODS). For more information, see Chapter 15, "Using the Output Delivery System."
RATE=value $\, | \,$ SAS-data-set
R=value $\, | \,$ SAS-data-set: specifies the sampling rate as a positive value, or specifies an input data set that contains the stratum sampling rates. The procedure uses this information to compute a finite population correction for variance estimation. If your sample design has multiple stages, you should specify the first-stage sampling rate, which is the ratio of the number of PSUs selected to the total number of PSUs in the population.

For a nonstratified sample design, or for a stratified sample design with the same sampling rate in all strata, you should specify a positive value for the RATE= option. If your design is stratified with different sampling rates in the strata, then you should name a SAS data set that contains the stratification variables and the sampling rates. See the section "Specification of Population Totals and Sampling Rates" for details.

The value in the RATE= option or the values of _RATE_ in the secondary data set must be positive numbers. You can specify value as a number between 0 and 1. Or you can specify value in percentage form as a number between 1 and 100, and PROC SURVEYREG will convert that number to a proportion. The procedure treats the value 1 as 100%, and not the percentage form 1%.

If you do not specify the TOTAL= option or the RATE= option, then the variance estimation does not include a finite population correction. You cannot specify both the TOTAL= option and the RATE= option.
TOTAL=value $\, | \,$ SAS-data-set
N=value $\, | \,$ SAS-data-set: specifies the total number of primary sampling units in the study population as a positive value, or specifies an input data set that contains the stratum population totals. The procedure uses this information to compute a finite population correction for variance estimation.

For a nonstratified sample design, or for a stratified sample design with the same population total in all strata, you should specify a positive value for the TOTAL= option. If your sample design is stratified with different population totals in the strata, then you should name a SAS data set that contains the stratification variables and the population totals. See the section "Specification of Population Totals and Sampling Rates" for details.

If you do not specify the TOTAL= option or the RATE= option, then the variance estimation does not include a finite population correction. You cannot specify both the TOTAL= option and the RATE= option.

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