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| The GLMPOWER Procedure |
| PROC GLMPOWER Statement |
The PROC GLMPOWER statement invokes the GLMPOWER procedure. You can specify the following options.
- DATA=SAS-data-set
names a SAS data set to be used as the exemplary data set, which is an artificial data set constructed to represent the intended sampling design and the conjectured response means for the underlying population.
- ORDER=DATA | FORMATTED | FREQ | INTERNAL
specifies the sorting order for the levels of all classification variables (specified in the CLASS statement). This order determines which parameters in the model correspond to each level in the data; so the ORDER= option might be useful when you use CONTRAST statements. Note that the ORDER= option applies to the levels for all classification variables. The exception is the default ORDER=FORMATTED for numeric variables for which you have supplied no explicit format. In this case, the levels are ordered by their internal values.
The following table shows how PROC GLMPOWER interprets values of the ORDER= option.
Value of ORDER=
Levels Sorted By
DATA
order of appearance in the input data set
FORMATTED
external formatted value, except for numeric variables with no explicit format, which are sorted by their unformatted (internal) value
FREQ
descending frequency count; levels with the most observations come first in the order
INTERNAL
unformatted value
By default, ORDER=FORMATTED. For FORMATTED and INTERNAL, the sort order is machine dependent. For more information about sorting order, see the chapter on the SORT procedure in the Base SAS Procedures Guide and the discussion of BY-group processing in SAS Language Reference: Concepts.
- PLOTONLY
specifies that only graphical results from the PLOT statement be produced.
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