Even you can Use HASH and DOUBLE DASH: It’s that Simple……
In order to understand HASH and DOUBLE HASH concept in SAS you need to know about two different ranges of variables: 1) Numbered list: When a set of variables have the same prefix, and the rest of the name is a consecutive set of numbers, we can use a single dash (-) to refer to an entire range. Some exs.. are…. VAR1 VAR2 VAR3 VAR4 VAR5 Shortcut list you can use to access all 5 variables is VAR1-VAR5 COL1 COL2 COL3 COL4 COL5 COL6 COL7 Shortcut list you can use to access all 7 variables is COL1-COL7 2) Name range list: When you refer to a list of variables in the order in which they were defined in the SAS dataset, you can use a double dash (--) to refer to the entire range of variables in between them. Ex: VAR1 VAR2 VAR3 COUNT VAR4 COL1 VAR5 Shortcut list you can use to access all 7 variables (including COL1, which has different prefix name than others) is VAR1- -VAR5 The general rule you should always remember for dash and double dash is: Single dash is useful to access the consequent...