The computer keeps track of which memory location the variable refers to. The programmer simply has to remember the name of the identifier the variable was given. Declaration and assignment ...

Example 15.6: Creating an Output Data Set from an ODS Table ... Thus, to modify the ObStats data set so that it contains only certain variables, you can use the data set options as follows. ods output ...

If you know that a numeric variable will be between 0 and 100, you can use a length of 3 to store the number and thus save space in your data set. For example: data mydata; length num 3; ...more SAS ...