Lag series operator with lag -1

qwertz2
qwertz2 New Altair Community Member
edited November 5 in Community Q&A

 

Dear all,

 

I would like to suggest a new feature to the "lag series" operator of the series extension. Currently this operator lags the selected attribute according to the specified parameter. However, the parameter has to be >= 1. So I was wondering why this is limited in that way. I would come handy if this operator could also lag negative values -> the other direction.

 

Best regards

Sachs

 

<?xml version="1.0" encoding="UTF-8"?><process version="7.5.001">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="7.5.001" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="generate_data" compatibility="7.5.001" expanded="true" height="68" name="Generate Data" width="90" x="45" y="34"/>
      <operator activated="true" class="series:lag_series" compatibility="7.4.000" expanded="true" height="82" name="Lag Series" width="90" x="179" y="34">
        <list key="attributes">
          <parameter key="att1" value="1"/>
        </list>
      </operator>
      <connect from_op="Generate Data" from_port="output" to_op="Lag Series" to_port="example set input"/>
      <connect from_op="Lag Series" 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>
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Answers

  • Thomas_Ott
    Thomas_Ott New Altair Community Member

    Hey, this is a great idea. Have you thought about adding it to our Idea forum? Our Developers scan that regularily for ideas instead of digging through there. 

  • suleymansahal
    suleymansahal New Altair Community Member

    Hi,

    Is there any development for this idea?

  • MartinLiebig
    MartinLiebig
    Altair Employee

    Hi @suleymansahal,

    I see where you are comming from. A workaround would be to sort the data set the other way around, lag it, and sort it again.

     

    Best,

    Martin

  • suleymansahal
    suleymansahal New Altair Community Member

    Hi Martin,

     

    Thank you for the solution. I guess I just have to create new id attribute if the present one is not in correct order.

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