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<?xml version="1.0" encoding="UTF-8" standalone="no"?><process version="6.5.002"> <context> <input/> <output/> <macros/> </context> <operator activated="true" class="process" compatibility="6.5.002" expanded="true" name="Process"> <process expanded="true"> <operator activated="true" class="retrieve" compatibility="6.5.002" expanded="true" height="60" name="Retrieve Sonar" width="90" x="45" y="120"> <parameter key="repository_entry" value="//Samples/data/Sonar"/> </operator> <operator activated="true" class="aggregate" compatibility="6.5.002" expanded="true" height="76" name="Aggregate" width="90" x="179" y="120"> <list key="aggregation_attributes"> <parameter key="attribute_1" value="sum"/> </list> </operator> <connect from_op="Retrieve Sonar" from_port="output" to_op="Aggregate" to_port="example set input"/> <connect from_op="Aggregate" from_port="example set output" to_port="result 1"/> <portSpacing port="source_input 1" spacing="0"/> <portSpacing port="sink_result 1" spacing="0"/> <portSpacing port="sink_result 2" spacing="0"/> </process> </operator></process>
Answers
you can do this using the aggregate operator. It works similar to the aggregate in SQL.
~Martin
Dortmund, Germany
try out the process below. This should illustrate it.
Martin
Dortmund, Germany