User Guide

681
Output Managem
ent System

Characters that aren’t allowed in variable names (for example, space, parentheses)
are removed
. For example, “This (Column) Label” would become a variable
named ThisColumnLabel.
 If the label begins with a character that is allowed in variable names but not
allowed as the first character (for example, a number), “@” is inserted as a prefix.
For example
“2nd” would become a variable named @2nd.
 Underscor
es or periods at the end of labels are removed from the resulting
variable names. (The underscores at the end of the automatically generated
variables Command_, Subtype_,andLabel_ are not removed.)
 If more than one element is in the column dimension, variable names are
construct
ed by combining category labels with underscores between category
labels. Group labels are not included. For example, if Va rB is nested under
VarA in the columns, you would get variables like CatA1_CatB1,not
VarA_Cat
A1_VarB_CatB1.
Figure 47-14
Variable names constru cted from t able elements