As part of the hour-long presentation, he provided and explained a step-by-step data cleaning process involving assessment, categorization, validation, cleaning and maintenance. [Click on image for ...

The DATA step can, for example, compute values, select specific input records for processing, and use conditional logic. The output from the DATA step can be of several types, such as a SAS data set ...

This DATA step writes an observation only after processing the last observation in each BY group. formatted values are used to group observations when a FORMAT statement and a BY statement are used ...