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how to remove elements from generated weight list

huaiyanggongzihuaiyanggongzi Member Posts: 39 Contributor II
edited November 2018 in Help
I have a stored weight generated by operator "weight by information gain". I am planning to just keep several specific items in this weight list and remove others. How can I achieve that goal? I think i may use "filter example" operator, but could not get it work. The following is the process
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.1.011">
 <context>
   <input/>
   <output/>
   <macros/>
 </context>
 <operator activated="true" class="process" compatibility="5.1.011" expanded="true" name="Process">
   <process expanded="true" height="373" width="720">
     <operator activated="true" class="retrieve" compatibility="5.1.011" expanded="true" height="60" name="Retrieve" width="90" x="62" y="130">
       <parameter key="repository_entry" value="svm_weight"/>
     </operator>
     <operator activated="true" class="weights_to_data" compatibility="5.1.011" expanded="true" height="60" name="Weights to Data" width="90" x="174" y="38"/>
     <operator activated="true" class="filter_examples" compatibility="5.1.011" expanded="true" height="76" name="Filter Examples" width="90" x="386" y="216">
       <parameter key="condition_class" value="missing_attributes"/>
       <parameter key="invert_filter" value="true"/>
     </operator>
     <connect from_op="Retrieve" from_port="output" to_op="Weights to Data" to_port="attribute weights"/>
     <connect from_op="Weights to Data" from_port="example set" to_op="Filter Examples" to_port="example set input"/>
     <portSpacing port="source_input 1" spacing="0"/>
     <portSpacing port="sink_result 1" spacing="0"/>
   </process>
 </operator>
</process>
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