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There are two types of variables in SAS: numeric variables and character variables.
Numeric variables have values which are numbers. This is the default data type in the input statement.
Character variables have values which are character strings. The names of character variables are FOLLOWED by a $ in the input statement.
The names of all SAS variables must be 8 characters or less with no embedded blanks.
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Copyright © 1997 by Jerry Alan Veeh. All rights reserved.