renaming does not work?

Fred12

<?xml version="1.0" encoding="UTF-8"?><process version="7.2.002">
  <context>
    <input>
      <location>//Daten/Masterdatensätze/Master3Klassen_nominal</location>
    </input>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="7.2.002" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="7.2.002" expanded="true" height="68" name="Retrieve Iris" width="90" x="45" y="238">
        <parameter key="repository_entry" value="//Samples/data/Iris"/>
      </operator>
      <operator activated="true" class="rename_by_replacing" compatibility="7.2.002" expanded="true" height="82" name="Rename by Replacing" width="90" x="246" y="187">
        <parameter key="attribute_filter_type" value="single"/>
        <parameter key="attribute" value="label"/>
        <parameter key="include_special_attributes" value="true"/>
        <parameter key="replace_what" value="Iris-setosa"/>
        <parameter key="replace_by" value="test"/>
      </operator>
      <connect from_op="Retrieve Iris" from_port="output" to_op="Rename by Replacing" to_port="example set input"/>
      <connect from_op="Rename by Replacing" 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>

I tried a simple renaming the label column if name is Iris-setosa, I want to give it another name... how is this done?

Thomas_Ott

Hi Fred,

 

Rename by Replacing is for Attribute names (the column names) not for the actual values. To do that, use the Replace operator. 

BalazsBarany

Hi,

 

Rename by Replacing works exclusively on the column names. It doesn't process the attribute values.

 

Example sets in RapidMiner have a strict table format. You can't just rename an attribute line-wise.

 

You could create a new column for each possible value of the label attribute with a Nominal to Numerical operator:

attribute filter type: single

attribute: label

[+] include special attributes