Modifying SAS Data Set Names and Variable Attributes

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Informats and formats: For more information about informats and formats available for reading and displaying data, see SAS Language Reference: Dictionary.
LABEL statement: For information about the LABEL statement that is used in the DATA step, see SAS Language Reference: Dictionary.
MODIFY statement: The MODIFY statement in the DATASETS procedure has additional statements that change informats and that create and delete indexes for variables. See the Base SAS Procedures Guide.
Renaming variables: You can use the RENAME= data set option and the RENAME statement in the DATA step to rename variables. See SAS Language Reference: Dictionary.
Variables: To learn how to create and delete variables in the DATA step, see Starting with SAS Data Sets.