[SOLVED] Generate Attribute with count of examples

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  haddock Member Posts: 849 Maven

  July 2012

  Hi there,
  
  Check out macros, which are "global variables" in normal speak, like this...

  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
  <process version="5.2.003">
    <context>
      <input/>
      <output/>
      <macros/>
    </context>
    <operator activated="true" class="process" compatibility="5.2.003" expanded="true" name="Process">
      <process expanded="true" height="222" width="820">
        <operator activated="true" class="generate_data" compatibility="5.2.003" expanded="true" height="60" name="Generate Data" width="90" x="61" y="72"/>
        <operator activated="true" class="extract_macro" compatibility="5.2.003" expanded="true" height="60" name="Extract Macro" width="90" x="246" y="75">
          <parameter key="macro" value="exs"/>
        </operator>
        <operator activated="true" class="aggregate" compatibility="5.2.003" expanded="true" height="76" name="Aggregate" width="90" x="385" y="73">
          <list key="aggregation_attributes">
            <parameter key="att1" value="sum"/>
          </list>
        </operator>
        <operator activated="true" class="extract_macro" compatibility="5.2.003" expanded="true" height="60" name="Extract Macro (2)" width="90" x="514" y="30">
          <parameter key="macro" value="sum"/>
          <parameter key="macro_type" value="data_value"/>
          <parameter key="attribute_name" value="sum(att1)"/>
          <parameter key="example_index" value="1"/>
        </operator>
        <operator activated="true" class="generate_attributes" compatibility="5.2.003" expanded="true" height="76" name="Generate Attributes" width="90" x="648" y="120">
          <list key="function_descriptions">
            <parameter key="exs" value="%{exs}"/>
            <parameter key="sum" value="%{sum}"/>
          </list>
        </operator>
        <connect from_op="Generate Data" from_port="output" to_op="Extract Macro" to_port="example set"/>
        <connect from_op="Extract Macro" from_port="example set" to_op="Aggregate" to_port="example set input"/>
        <connect from_op="Aggregate" from_port="example set output" to_op="Extract Macro (2)" to_port="example set"/>
        <connect from_op="Aggregate" from_port="original" to_op="Generate Attributes" to_port="example set input"/>
        <connect from_op="Extract Macro (2)" from_port="example set" to_port="result 1"/>
        <connect from_op="Generate Attributes" from_port="example set output" to_port="result 2"/>
        <portSpacing port="source_input 1" spacing="0"/>
        <portSpacing port="sink_result 1" spacing="0"/>
        <portSpacing port="sink_result 2" spacing="0"/>
        <portSpacing port="sink_result 3" spacing="0"/>
      </process>
    </operator>
  </process>

  Hope that's useful.
  
  

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  jan87 Member Posts: 14 Contributor II

  July 2012

  Thank you, that was very helpful.
  
  I didnt know that this Extract Macro operator solves exactly this problem.
  
  Sometimes it is a pity that there is no tutorial for the basic operators (for preprocessing), but the online tutorial covers mostly the modeling operators...

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