@cindex language, PSPP
@cindex PSPP, language
-@note{PSPP is not even close to completion.
-Only a few statistical procedures are implemented. PSPP
-is a work in progress.}
-
This chapter discusses elements common to many PSPP commands.
Later chapters will describe individual commands in detail.
Variables, whether numeric or string, can have designated
@dfn{user-missing values}. Every user-missing value is an actual value
for that variable. However, most of the time user-missing values are
-treated in the same way as the system-missing value. String variables
-that are wider than a certain width, usually 8 characters (depending on
-computer architecture), cannot have user-missing values.
+treated in the same way as the system-missing value.
For more information on missing values, see the following sections:
@ref{Variables}, @ref{MISSING VALUES}, @ref{Expressions}. See also the