Notes Commands and command options have names. Shortened names are allowed.
Commands can have continuation lines.
W1 P WGWP X Variable name lists can be abbreviated by the use of a numbered range list. The variables in a numbered range list have the identical name, except for the last character or characters, which are consecutive numbers. For example, the following two commands are equivalent. That is, upper case and lower case is interchangeable. All the variables listed must have the same number of observations.