Nominal to Binominal

kavuch

Say I have the following CSV:

color,product
blue,pullover
yellow,shirt
green,pullover
yellow,dress
blue,shoes
blue,pullover

How can I transform the attribute "color" into binominal, so that I get 3 additional attributes like

blue: 0 or 1
yellow: 0 or 1
green: 0 or 1

earmijo

Of course. Use the operator "Nominal to Numerical" . Make sure coding type is set to dummy coding and you'll get exactly what you want.

Here's a process with the Golf dataset:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="6.5.002">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="6.5.002" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="6.5.002" expanded="true" height="60" name="Retrieve Golf" width="90" x="45" y="165">
        <parameter key="repository_entry" value="//Samples/data/Golf"/>
      </operator>
      <operator activated="true" class="nominal_to_numerical" compatibility="6.5.002" expanded="true" height="94" name="Nominal to Numerical" width="90" x="246" y="165">
        <parameter key="attribute_filter_type" value="single"/>
        <parameter key="attribute" value="Outlook"/>
        <list key="comparison_groups"/>
      </operator>
      <connect from_op="Retrieve Golf" from_port="output" to_op="Nominal to Numerical" to_port="example set input"/>
      <connect from_op="Nominal to Numerical" 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>