Chapter Contents

Previous

Next

Changes in Output

The SAS System now features a new Output Delivery System (ODS), replacing the old one used by PROC MIXED in Version 6. The primary changes involve the replacing of the MAKE statement and the _print_ and _disk_ global variables with the new ODS statement. The following table lists some typical conversions you need to make.

Each table created by PROC MIXED has a name associated with it, and you must use this name to reference the table when using ODS statements. These names are listed in Table 41.7.

In Table 41.7, "Coefficients" refers to multiple tables produced by the E, E1, E2, or E3 options in the MODEL statement and the E option in the CONTRAST, ESTIMATE, and LSMEANS statements. You can create one large data set of these tables with a statement similar to

   ods output Coefficients=c;

Be aware that the number of variables in this data set is determined by the first table created. To create separate data sets, use

   ods output Coefficients(match_all)=c;

Here the resulting data sets are named C1, C2, C3, etc. The same principles apply to data sets created from the "R," "CholR," "InvCholR," "RCorr," "InvR," "V," "CholV," "InvCholV," "VCorr," and "InvV" tables.

In Table 41.7, the following changes have occured from Version 6. The "Predicted," "PredMeans," and "Sample" tables from Version 6 no longer exist and have been replaced by output data sets; see descriptions of the MODEL statement options OUTPRED= and OUTPREDM= and the PRIOR statement option OUT= for more details. The "ML" and "REML" tables from Version 6 have been replaced by the "IterHistory" table. The "Tests," "HLM," and "HLPS" tables from Version 6 have been renamed "Tests3," "HLM3," and "HLPS3."

Table 41.8 lists the variable names associated with the data sets created when you use the ODS OUTPUT option in conjunction with the preceding tables. In Table 41.8, n is used to denote a generic number that is dependent upon the particular data set and model you select, and it can assume a different value each time it is used (even within the same table). The phrase model specific appears in rows of the affected tables to indicate that columns in these tables depend upon the variables you specify in the model.

Caution: There exists a danger of name collisions with the variables in the model specific tables in Table 41.8 and variables in your input data set. You should avoid using input variables with the same names as the variables in these tables.

Some of the variables listed in Table 41.8 are created only when you have specified certain options in the relevant PROC MIXED statements.

The following changes have occurred in these variables from Version 6. Nearly all underscores have been removed from variable names in order to be compatible and consistent with other procedures. Some of the variable names have been changed (for example, T has been changed to tValue and PT to Probt) for the same reason. You may have to modify some of your Version 6 code to accommodate these changes.

Chapter Contents

Previous

Next

Top

Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.