Grouping data and creating a pie chart

noelle

Hello.

I have a question on how to group data and measure it against other data in the same set.
I would like to group the top 10 data and create a pie chart showing the total percentage of the top 10 data and the total percentage of all the others.
Basically, I wanted the pie chart to be divided into "top 10" and "others".
I really have no clue where to start.
I hope anyone could help.

Thank you so much.

yyhuang

Hi @noelle,

The pie chart will need a target for "top 10" or "others". I group the Titanic passenger fare into two categories: top 10 percentile or others. The pie char shows an example to view the average fare by group.

<?xml version="1.0" encoding="UTF-8"?><process version="9.7.002">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="9.7.002" expanded="true" name="Process">
    <parameter key="logverbosity" value="init"/>
    <parameter key="random_seed" value="2001"/>
    <parameter key="send_mail" value="never"/>
    <parameter key="notification_email" value="yhuang@rapidminer.com"/>
    <parameter key="process_duration_for_mail" value="1"/>
    <parameter key="encoding" value="SYSTEM"/>
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="9.7.002" expanded="true" height="68" name="Retrieve Titanic Training" width="90" x="45" y="34">
        <parameter key="repository_entry" value="//Samples/data/Titanic Training"/>
      </operator>
      <operator activated="true" class="sort" compatibility="9.7.002" expanded="true" height="82" name="Sort" width="90" x="179" y="34">
        <parameter key="attribute_name" value="Passenger Fare"/>
        <parameter key="sorting_direction" value="decreasing"/>
      </operator>
      <operator activated="true" class="generate_id" compatibility="9.7.002" expanded="true" height="82" name="Generate ID" width="90" x="313" y="34">
        <parameter key="create_nominal_ids" value="false"/>
        <parameter key="offset" value="0"/>
      </operator>
      <operator activated="true" class="generate_attributes" compatibility="9.7.002" expanded="true" height="82" name="Generate Attributes" width="90" x="447" y="34">
        <list key="function_descriptions">
          <parameter key="Top_10percentile" value="if(id&lt;92,&quot;Top10&quot;,&quot;Other&quot;)"/>
        </list>
        <parameter key="keep_all" value="true"/>
        <description align="center" color="transparent" colored="false" width="126">top10 percentile fare or others</description>
      </operator>
      <connect from_op="Retrieve Titanic Training" from_port="output" to_op="Sort" to_port="example set input"/>
      <connect from_op="Sort" from_port="example set output" to_op="Generate ID" to_port="example set input"/>
      <connect from_op="Generate ID" from_port="example set output" to_op="Generate Attributes" to_port="example set input"/>
      <connect from_op="Generate Attributes" 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>

Hope it helps.

YY