Loop Files Operator

7amritaarora7

How can we transfer data from loop files operator to data to documents operator?

- The nested processes in loop files operator are working fine

- When I connect it to documents to data, I can't select text attribute in its properties, there isn't any option in the dropdown

- Similarly, I can't set role label

 

Need urgent Help

 

P.S. - I'm trying out the process mentioned in Chapter 14 of the book - RapidMiner - Data Mining Use Cases and Business Analytics Applications by CRC Press, edited by Markus Hofmann and Ralf Klinkenberg

MartinLiebig

Hey,

 

what defintly works, but is maybe not the most elegant solution, is using a Loop collection. Attached is a process showing it.

 

~Martin

 

<?xml version="1.0" encoding="UTF-8"?><process version="7.2.001">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="7.2.001" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="loop" compatibility="7.2.001" expanded="true" height="82" name="Loop" width="90" x="112" y="34">
        <parameter key="set_iteration_macro" value="true"/>
        <process expanded="true">
          <operator activated="true" class="text:create_document" compatibility="7.2.000" expanded="true" height="68" name="Create Document" width="90" x="246" y="85">
            <parameter key="text" value="abc %{iteration}"/>
          </operator>
          <connect from_op="Create Document" from_port="output" to_port="output 1"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="sink_output 1" spacing="0"/>
          <portSpacing port="sink_output 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="loop_collection" compatibility="7.2.001" expanded="true" height="82" name="Loop Collection" width="90" x="246" y="34">
        <process expanded="true">
          <operator activated="true" class="text:documents_to_data" compatibility="7.2.000" expanded="true" height="82" name="Documents to Data" width="90" x="112" y="34">
            <parameter key="text_attribute" value="text"/>
          </operator>
          <connect from_port="single" to_op="Documents to Data" to_port="documents 1"/>
          <connect from_op="Documents to Data" from_port="example set" to_port="output 1"/>
          <portSpacing port="source_single" spacing="0"/>
          <portSpacing port="sink_output 1" spacing="0"/>
          <portSpacing port="sink_output 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="append" compatibility="7.2.001" expanded="true" height="82" name="Append" width="90" x="380" y="34"/>
      <connect from_op="Loop" from_port="output 1" to_op="Loop Collection" to_port="collection"/>
      <connect from_op="Loop Collection" from_port="output 1" to_op="Append" to_port="example set 1"/>
      <connect from_op="Append" from_port="merged set" 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>

MartinLiebig

Hi,

 

have you tried to use an append operator?

Otherwise could you maybe post your process please?

 

~Martin

7amritaarora7

Hi

 

I'm attaching the process here, please have a look

 

Amrita

7amritaarora7

@mschmitz any solution?

7amritaarora7

Hey Martin

Thanks a lot!
Will add it to the process, hopefully no other issues arise.

Regards
Amrita