Combining values from common examples into new attributes

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  MartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,507 RM Data Scientist

  May 2017 Solution Accepted

  Hey,

   

  you can go for Aggregate group_by Drug Name and concat(Ingridient), this gives you

   

  Drug ID     Drug Name     Ingredient

  23              Centrum         Vitamin D|Vitamin B|VitaminC

   

   

  Afterwards you can use a Split operator to split the Ingredient on \| to get the desired output. Attached is the demo process.

   

  Best,

  Martin

   

  <?xml version="1.0" encoding="UTF-8"?><process version="7.3.001">
    <context>
      <input/>
      <output/>
      <macros/>
    </context>
    <operator activated="true" class="process" compatibility="7.3.001" expanded="true" name="Process">
      <process expanded="true">
        <operator activated="true" breakpoints="after" class="subprocess" compatibility="7.3.001" expanded="true" height="82" name="Subprocess" width="90" x="45" y="85">
          <process expanded="true">
            <operator activated="true" class="generate_data_user_specification" compatibility="7.3.001" expanded="true" height="68" name="Generate Data by User Specification" width="90" x="45" y="34">
              <list key="attribute_values">
                <parameter key="Drug ID" value="23"/>
                <parameter key="Drug Name" value="&quot;Centrum&quot;"/>
                <parameter key="Ingridient" value="&quot;Vitamin A&quot;"/>
              </list>
              <list key="set_additional_roles"/>
            </operator>
            <operator activated="true" class="generate_data_user_specification" compatibility="7.3.001" expanded="true" height="68" name="Generate Data by User Specification (2)" width="90" x="45" y="187">
              <list key="attribute_values">
                <parameter key="Drug ID" value="23"/>
                <parameter key="Drug Name" value="&quot;Centrum&quot;"/>
                <parameter key="Ingridient" value="&quot;Vitamin B&quot;"/>
              </list>
              <list key="set_additional_roles"/>
            </operator>
            <operator activated="true" class="generate_data_user_specification" compatibility="7.3.001" expanded="true" height="68" name="Generate Data by User Specification (3)" width="90" x="45" y="289">
              <list key="attribute_values">
                <parameter key="Drug ID" value="23"/>
                <parameter key="Drug Name" value="&quot;Centrum&quot;"/>
                <parameter key="Ingridient" value="&quot;Vitamin C&quot;"/>
              </list>
              <list key="set_additional_roles"/>
            </operator>
            <operator activated="true" class="append" compatibility="7.3.001" expanded="true" height="124" name="Append" width="90" x="380" y="85"/>
            <connect from_op="Generate Data by User Specification" from_port="output" to_op="Append" to_port="example set 1"/>
            <connect from_op="Generate Data by User Specification (2)" from_port="output" to_op="Append" to_port="example set 2"/>
            <connect from_op="Generate Data by User Specification (3)" from_port="output" to_op="Append" to_port="example set 3"/>
            <connect from_op="Append" from_port="merged set" to_port="out 1"/>
            <portSpacing port="source_in 1" spacing="0"/>
            <portSpacing port="sink_out 1" spacing="0"/>
            <portSpacing port="sink_out 2" spacing="0"/>
          </process>
          <description align="center" color="transparent" colored="false" width="126">Generate Data</description>
        </operator>
        <operator activated="true" class="aggregate" compatibility="7.3.001" expanded="true" height="82" name="Aggregate" width="90" x="179" y="85">
          <list key="aggregation_attributes">
            <parameter key="Ingridient" value="concatenation"/>
          </list>
          <parameter key="group_by_attributes" value="Drug Name|Drug ID"/>
        </operator>
        <operator activated="true" class="rename" compatibility="7.3.001" expanded="true" height="82" name="Rename" width="90" x="313" y="85">
          <parameter key="old_name" value="concat(Ingridient)"/>
          <parameter key="new_name" value="Ingridient"/>
          <list key="rename_additional_attributes"/>
        </operator>
        <operator activated="true" class="split" compatibility="7.3.001" expanded="true" height="82" name="Split" width="90" x="514" y="85">
          <parameter key="attribute_filter_type" value="single"/>
          <parameter key="attribute" value="Ingridient"/>
          <parameter key="split_pattern" value="\|"/>
        </operator>
        <connect from_op="Subprocess" from_port="out 1" to_op="Aggregate" to_port="example set input"/>
        <connect from_op="Aggregate" from_port="example set output" to_op="Rename" to_port="example set input"/>
        <connect from_op="Rename" from_port="example set output" to_op="Split" to_port="example set input"/>
        <connect from_op="Split" 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>
  

   

  - Sr. Director Data Solutions, Altair RapidMiner -
  Dortmund, Germany

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