String index out of range: -2

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  robin Member Posts: 100 Guru

  September 2018 Solution Accepted

  The 'Cut' operator. If I have a string that I want cut out some information I put in the start and end position. The problem comes in if I set an end position and the string is shorter than the total length I set then the I get an 'index out of range' error. 

   

  Instead of firing the error I should be able to say do not fault if the string is shorter than the stipulated range. 

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  MartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,509 RM Data Scientist

  September 2018 Solution Accepted

  Hi @robin,

  i've tried to reproduce it with the attached process and it does not fail? Can you share an example of a failing operator?

   

  BR,

  Martin

   

  <?xml version="1.0" encoding="UTF-8"?><process version="9.0.002">
    <context>
      <input/>
      <output/>
      <macros/>
    </context>
    <operator activated="true" class="process" compatibility="9.0.002" expanded="true" name="Process">
      <process expanded="true">
        <operator activated="true" class="retrieve" compatibility="9.0.002" expanded="true" height="68" name="Retrieve Golf" width="90" x="179" y="34">
          <parameter key="repository_entry" value="//Samples/data/Golf"/>
        </operator>
        <operator activated="true" class="cut" compatibility="9.0.002" expanded="true" height="82" name="Cut" width="90" x="313" y="34">
          <parameter key="attribute" value="Outlook"/>
          <parameter key="last_character_index" value="58"/>
        </operator>
        <connect from_op="Retrieve Golf" from_port="output" to_op="Cut" to_port="example set input"/>
        <connect from_op="Cut" 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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