Fileiterator

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  land RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 2,531 Unicorn

  October 2009

  Hi,
  here it comes how it works. It's a little bit tricky, because you have to use some "dirty" operators like the ExceptionHandling, but nevertheless, it's quite easy if you know how to do it:

  <operator name="Root" class="Process" expanded="yes">
      <operator name="FileIterator" class="FileIterator" expanded="yes">
          <parameter key="directory"	value="C:\Test"/>
          <parameter key="filter"	value=".*arff"/>
          <operator name="ExceptionHandling" class="ExceptionHandling" expanded="yes">
              <operator name="IORetriever" class="IORetriever">
                  <parameter key="name"	value="ES"/>
                  <parameter key="io_object"	value="ExampleSet"/>
              </operator>
          </operator>
          <operator name="ArffExampleSource" class="ArffExampleSource">
              <parameter key="data_file"	value="%{file_path}"/>
          </operator>
          <operator name="ExampleSetMerge" class="ExampleSetMerge">
          </operator>
          <operator name="IOStorer" class="IOStorer">
              <parameter key="name"	value="ES"/>
              <parameter key="io_object"	value="ExampleSet"/>
          </operator>
      </operator>
      <operator name="IORetriever (2)" class="IORetriever">
          <parameter key="name"	value="ES"/>
          <parameter key="io_object"	value="ExampleSet"/>
      </operator>
  </operator>
  

  And I assume, with RapidMiner 5.0 it will be much easier...
  
  Greetings,
    Sebastian

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  pop Member Posts: 21 Maven

  October 2009

  Thank you very much Sebastian, this is brilliant!!

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