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Chapter 12
Figure 12-1
System Options dialog box
Maximummemory. Select to impose a limit in megabytes on SPSS Modeler’s memory usage. On
some platforms, SPSS Modeler limits its process size to reduce the toll on computers with limited
resources or heavy loads. If you are dealing with large amounts of data, this may cause an “out of
memory” error. You can ease memory load by specifying a new threshold.
Usesystem locale. This option is selected by default and set to English (U nited States). Deselect
to specify another language from the list of available languages and locales.

Managing Memory

In addition to the Maximum memory setting specified in the System Options dialog box, there are
several ways you can optimize memory usage:
Set up a cache on any nonterminal node so that the data is read from the cache rather tha n
retrieved from the data source when you run the data stream. This will help decrease the
memory load for large data sets. For more i nformation, see the topic Caching Options for
Nodes in Chapter 5 on p. 50.
Adjust the Maximum members for nominal fields option in the stream properties dialog box.
This option specifies a maximum number of members for nominal fields after which the
measurement level of the field becomes Typeless. For more information, see the to pic Setting
general options for streams in Chapter 5 on p. 55.
Force IBM® SPSS® Modeler to free up memory by clicking in the lower right corner of
the window where the memory that SPSS Modeler is using and the amount allocated are
displayed (xxMB / xxMB). Clicking this region turns it a darker shade, after which memory
allocation figures will drop. Once the region returns to it s regular color,S PSS Modeler has
freed up all the memory possible.
Setting Default Directories
Youcan specify the default directory used for file browser s and output by selecting Set Directory or
Set Server Directory from the File menu.
Set Directory. You can use this option to set the working directory. The default working
directory is based on the installation path of your version of IBM® SPSS® Modeler or from
the command line path used to launch SPSS Modeler. In local mode, the working directory