The target variable must be named first, and the
equals sign is required. Only one target variable is allowed per COMPUTE command.
If the target variable is numeric, the expression
must yield a numeric value; if the target variable is a string, the
expression must yield a string value.
Each function must specify at least one argument
enclosed in parentheses. If a function has two or more arguments,
the arguments must be separated by commas. For a complete discussion
of functions and their arguments, see Transformation Expressions.
You can use the TO keyword to refer to a set of variables where the argument is a list
of variables.