TABULATE Procedure
BY Statement
Creates a separate table on a separate page for
each BY group.
Syntax
Required Argument
- variable
-
specifies the variable
that the procedure uses to form BY groups. You can specify more than
one variable. If you do not use the NOTSORTED option in the BY statement,
then the observations in the data set must either be sorted by all
the variables that you specify, or they must be indexed appropriately.
Variables in a BY statement are called BY variables.
Optional Arguments
- DESCENDING
-
specifies that the
observations are sorted in descending order by the variable that immediately
follows the word DESCENDING in the BY statement.
- NOTSORTED
-
specifies that observations
are not necessarily sorted in alphabetic or numeric order. For example,
the observations are grouped in chronological order.
The requirement for
ordering or indexing observations according to the values of BY variables
is suspended for BY-group processing when you use the NOTSORTED option.
In fact, the procedure does not use an index if you specify NOTSORTED.
The procedure defines a BY group as a set of contiguous observations
that have the same values for all BY variables. If observations with
the same values for the BY variables are not contiguous, then the
procedure treats each contiguous set as a separate BY group.
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