SPSS® 12.0 Command Syntax Reference

895
MAPS
• The total (sum) of sales to each zip code will be represented in the size of a symbol at each
of the x/y points. If multiple cases have the same zip code, they will be summed to give
the total sales per zip code.
GSET Subcommand
The required GSET subcommand names the geoset that supplies the boundaries, points, and
other geographic features for the map. The filename refers to a file with a .GST extension
that includes references to the various tables that make up the geoset.
LAYER Keyword
By default, the Maps procedure searches all of the registered tables in the geoset to find
one whose values match the values of your geographic variable. It is possible for more than
one table in the geoset to contain matching values. You might, for example, have a layer
of major cities and another layer of capital cities, with a good deal of duplication between
them. The optional LAYER keyword on the GSET subcommand allows you to specify a particular
layer in the geoset to which you want your geographic variable to be bound. To find
the names of all the layers in a geoset, run the Geoset Manager, which is available from
the SPSS for Windows software group on the Start menu.
SHOWLABEL Subcommand
The SHOWLABEL subcommand allows you to specify whether labels are displayed on your
map for the layer that matches your geographic variable.
AS_IS Displays or hides the labels depending on the setting within the geoset. This is the
default.
NO Hides the labels.
YES Displays the labels.
TITLE Subcommand
The TITLE subcommand specifies a title for the map. The default title is the name of the
geoset.
• The title is limited to a single line.
• Enter the title enclosed in quotation marks or apostrophes.
• Title attributes (font, size, color) can be changed through editing in the Viewer but cannot
be set through command syntax.