Retrieves the centroids of polygons
Variables written out: |
X, Y, id variables
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Prerequisite: |
You must run the %ANNOMAC macro before using
any other annotate macros. For more information, see Making the Macros Available.
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%CENTROID (input-data-set, output-data-set, list-of-id-variables);
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input-data-set
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specifies a map data set. The input map
data set must be sorted by the ID variables.
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output-data-set
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contains the id variables and the X and
Y variables.
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list-of-id-variables
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specifies the variables each of which is
to be assigned the centroid coordinates of each observation in the input-data-set.
There will be one observation for each unique set of ID values. If you specify
more than one ID variable, then separate each variable with a space.
Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.