filtering geocoded data before going into each-loop. now your columns…

… are not counted if record is not geocoded. Otherwise it will throw an error if you start with an index wich is not zero.

lib/seer/geomap.rb

@@ -90,8 +90,7 @@ def data_mode=(mode) #:nodoc:
 
     def data_table #:nodoc:
       @data_table = []
-      data.each_with_index do |datum, column|
-        next unless datum.geocoded?
+      data.select{ |d| d.geocoded? }.each_with_index do |datum, column|
         if data_mode == "markers"
           @data_table << [
             "            data.setValue(#{column}, 0, #{datum.latitude});\r",