MEANS Procedure
- Syntax
- Overview
- Concepts
- Using
- Results
- Examples Computing Specific Descriptive StatisticsComputing Descriptive Statistics with Class VariablesUsing the BY Statement with Class VariablesUsing a CLASSDATA= Data Set with Class VariablesUsing Multilabel Value Formats with Class VariablesUsing Preloaded Formats with Class VariablesComputing a Confidence Limit for the MeanComputing Output StatisticsComputing Different Output Statistics for Several VariablesComputing Output Statistics with Missing Class Variable ValuesIdentifying an Extreme Value with the Output StatisticsIdentifying the Top Three Extreme Values with the Output StatisticsUsing the STACKODSOUTPUT option to control data
- References
TYPES Statement
Identifies which of the possible combinations of
class variables to generate.
Syntax
TYPES request(s);
Required Argument
- request(s)
-
specifies which of the
combinations of class variables PROC MEANS uses
to create the types, where 
is the number of class variables. A request includes
one class variable name, several class variable names separated by
asterisks, or ().
To request class variable combinations quickly, use a grouping syntax by placing parentheses around several variables and joining other variables or variable combinations. For example, the following statements illustrate grouping syntax:Interaction:The CLASSDATA= option places constraints on the NWAY type. PROC MEANS generates all other types as if derived from the resulting NWAY type.Tips:Use ( ) to request the overall total (_TYPE_=0).If you do not need all types in the output data set, then use the TYPES statement to specify particular subtypes rather than applying a WHERE clause to the data set. Doing so saves time and computer memory.
Details
Order of Analyses in the Output
The
analyses are written to the output in order of increasing values of
the _TYPE_ variable, which is calculated by PROC MEANS. The _TYPE_
variable has a unique value for each combination of class variables;
the values are determined by how you specify the CLASS statement,
not the TYPES statement. Therefore, if you specify
then
the B*C analysis (_TYPE_=3) is written first, followed by the A*C
analysis (_TYPE_=5). However, if you specify
The _TYPE_ variable
is calculated even if no output data set is requested. For more information
about the _TYPE_ variable, see Output Data Set.