SPSS® 12.0 Command Syntax Reference

Example
899
MAPS
MAPS
/GVAR = VAR(fromctry)
/GSET = ’World Countries’ LAYER=’World’
/TITLE = ’Total Messages Per Country’
/DOTMAP= $COUNT.
• This command creates a map that uses dot densities within the borders of each country to
show the number of e-mail messages received from that country.
• The data for this example are records of individual e-mail messages.
• The geographic variable is the country from which each message originated.
• The $COUNT stand-in variable requests that the messages be counted for each country.
IVMAP Subcommand
Example
An individual values map uses color and/or pattern differences to indicate the value each
region has on a single variable.
VAR(varname) The variable whose values determine the color and/or pattern for each
region. This specification is required.
(SUM=function) The aggregation to be performed on the specified variable to produce
the values represented by the individual colors. Required even if the
data contain only one record per region (in which case you can use any
of the functions that return the single value, such as MEAN or MODE).
From the dialog boxes, only MODE is available. Not required if the
variable is $COUNT.
LEGENDTITLE The title for the legend. (DEFAULT) explicitly requests the default,
which is the label of the variable whose values are shown.
VISIBLE Determines whether the theme is visible when the map is initially
drawn. The default is YES. The alternative, NO, is useful on multipletheme
maps where you intend to experiment with which themes to
show.
MAPS
/GVAR = VAR(country)
/GSET = ’World Countries’ LAYER=’World’
/IVMAP= VAR(climate) SUM=(MODE).
• This command produces a map in which each country is colored to indicate its predominant
climate.
• The legend contains the value labels for CLIMATE.
• The MODE function produces the most frequently occurring value for each country.
Because this data file contains only one record for each country, that value is obtained and
shown.