What does the NOPRINT option achieve in PROC FREQ?

The NOPRINT option in PROC FREQ is used to suppress the display of output results in the output window or listing. When this option is specified, PROC FREQ will still perform its computations and generate the required frequency tables internally, but it will not produce any printed output. This is particularly useful in scenarios where the user wants to create frequency tables for further processing or to create data sets without actually displaying the results. Instead of the output being printed to the output window or results viewer, the data can be saved to a dataset or used in other data manipulations without cluttering the output.

The other choices do not accurately describe the function of the NOPRINT option. For instance, including summary statistics is not accomplished by using NOPRINT, nor does it relate to listing variable frequencies or displaying missing values. These functionalities are handled by other options or statements in PROC FREQ. Thus, the ability to suppress output completely is the defining feature of the NOPRINT option.