Specifies the upper limit of CPU time for the optimization process. It is measured in seconds.
7 days, that is, MAXTIME=604800 seconds
Suppresses all output printed and only ERRORs, WARNINGs, and NOTEs are printed on the log
Prints all optional output except the output generated by the PSTDERR , LIST, or LISTCODE
Prints the optimization history. If PSUMMARY or NOPRINT are not specified, then the
PHISTORY option is set automatically. The iteration history is printed by default.
Restricts the amount of default printed output to a short form of iteration history and NOTEs,
WARNINGs, and ERRORs.
Specifies that the QUANEW or CONGRA algorithm is restarted with a steepest descent/ascent
search direction after the number of iterations has been completed.
For TECHNIQUE=CONGRA, and UPDATE= PB, restart is done
automatically, so number is not used;
For TECHNIQUE=CONGRA, and UPDATE not = PB, number is the
number of parameters.
For TECHNIQUE=QUANEW, number is the largest integer available.
Specifies an absolute singularity criterion for the computation of the inertia of Hessian and
cross-product Jacobian and their projected forms.
where method is one of the following:
when the number of parameters to be estimated is n 40.
Specifies the Double-Dogleg optimization technique.
Specifies the quasi-Newton optimization technique. This is the default when the number of
convergence parameters to be estimated is in the range: 40 < n 400.
number of convergence parameters to be estimated is n 400.
The default technique is either NRRIDG, QUANEW, or CONGRA,
depending on the value of the number of convergence parameters to be
See for more information.
where update-type is one of the following:
For TECHNIQUE=QUANEW, performs the BFGS (Broyden-Fletcher-Goldfarb-Shanno)
For TECHNIQUE=CONGRA, performs a conjugate descent update of Fletcher.
For TECHNIQUE=DBLDOG or QUANEW, performs the dual BFGS
(Broyden-Fletcher-Goldfarb-Shanno) update of the Cholesky factor of the Hessian matrix.
This is the default for TECHNIQUE=QUANEW and DBLDOG .
For TECHNIQUE=DBLDOG or QUANEW, performs the dual DFP
update of the inverse Hessian matrix.
For TECHNIQUE=CONGRA, performs the Fletcher-Reeves update.
For TECHNIQUE=CONGRA, performs the automatic restart update method of Powell and
For TECHNIQUE=CONGRA, performs the Polak-Ribiere update.
Specifies the version of the hybrid quasi-Newton optimization technique or the version of the
quasi-Newton optimization technique with nonlinear constraints.
Specifies the relative parameter convergence criterion.
Specifies the number of successive iterations for which the criterion must be satisfied before the
optimization process can be terminated.
Copyright 2000 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
The REMOTE statement is implemented in the NEURAL, DMREG, and DMVQ procedures in
Enterprise Miner 4.1. You can use it to communicate with an MFC monitor (an external process on a
Window client) to observe the progress of the iterative algorithm or to interrupt the iterative process. The
monitor has a Graph tab and a Status tab as shown below:
absolute gradient versus iteration number. Click [
] or [
] to stop the current or all
optimization process. The Status tab displays the objective function and the maximum absolute element
of the gradient vectors for each iteration.
establishes a TCP/IP socket connection to an MFC monitor on the WIndow client to receive the
report of the ongoing optimization. The socket reference contains the IP address and the port
number and can be defined by using the following FILENAME statement:
FILENAME SOCKET '';
where ip_address is the IP address of the Window client and portnum is the socket port number.
The socket port number os any number that you use to invoke the MFC monitor.
PLOTFILE=fileref | ' external-file'
Specifies the external file that contains the iterative history (for example, the iteration number, the
objective function, and the maximum absolute gradient). You can specify the path of the external
file in quotes or you can use the FILENAME statement to specify a file reference. This option is
obsolete if you can take advantage of the SOCKET= option.
Specifies an external file that the iterative process will be terminated if this file exists. This is
useful when you run a project with a large data set. To stop the process, you must create the
external file. The DMREG procedure stops the iterative process when it detects this file. The file
does not have to have any content. You can specify the path of an external file in quotes or use the
LIBNAME statement to specify the file reference. This option is obsolete if you can take
advantage of the SOCKET= option.
PROC DMREG DATA=SAMPSIO.DMDCENS DMDBCAT=SAMPSIO.DMDCENS;
CLASS CLASS WORKCLAS MARTAL OCCUPATN RELATION RACE SEX COUNTRY;
MODEL CLASS=AGE FNLWGT EDUC_NUM CAP_GAIN CAP_LOSS HOURWEEK
WORKCLAS MARITAL OCCUPATN RELATION RACE SEX COUNTRY
/ SELECTION=F CHOOSE=AIC;
connect is made you can see the display of the iteration history of the ongoing optimization.