Generate attribute

mario_sark

Hello!

I am trying the add a column in order to check if an attribute is in between it's [Average -/+ one Standard Deviation]  give it a value of "2" if it is less then Average- one Standard Deviation give it a value of "1"  and finally if it is Greater then Average+Standard deviation  give it a value of "3". Please check the example below.

ID	X1	Average of X1	Standard deviation o fX1	Average - STD	Average + STD	Generated Attribute
1	1,000	2,417	1,017	1,400	3,434	1
2	2,000	2,417	1,017	1,400	3,434	2
3	2,000	2,417	1,017	1,400	3,434	2
4	3,500	2,417	1,017	1,400	3,434	3
5	4,000	2,417	1,017	1,400	3,434	3
6	2,000	2,417	1,017	1,400	3,434	1

Thank you, 
Mario

lionelderkrikor

Hi @mario_sark,

You can use Generate attributes operator: 

Here the process with a sample of your data : 

<?xml version="1.0" encoding="UTF-8"?><process version="9.2.001">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="9.2.001" 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=""/>
    <parameter key="process_duration_for_mail" value="30"/>
    <parameter key="encoding" value="SYSTEM"/>
    <process expanded="true">
      <operator activated="true" class="utility:create_exampleset" compatibility="9.2.001" expanded="true" height="68" name="Create ExampleSet" width="90" x="112" y="85">
        <parameter key="generator_type" value="comma separated text"/>
        <parameter key="number_of_examples" value="100"/>
        <parameter key="use_stepsize" value="false"/>
        <list key="function_descriptions"/>
        <parameter key="add_id_attribute" value="false"/>
        <list key="numeric_series_configuration"/>
        <list key="date_series_configuration"/>
        <list key="date_series_configuration (interval)"/>
        <parameter key="date_format" value="yyyy-MM-dd HH:mm:ss"/>
        <parameter key="time_zone" value="SYSTEM"/>
        <parameter key="input_csv_text" value="X1,average-std,average+std&#10;1,1.4,3.434&#10;2,1.4,3.434&#10;3.5,1.4,3.434"/>
        <parameter key="column_separator" value=","/>
        <parameter key="parse_all_as_nominal" value="false"/>
        <parameter key="decimal_point_character" value="."/>
        <parameter key="trim_attribute_names" value="true"/>
      </operator>
      <operator activated="true" class="generate_attributes" compatibility="9.2.001" expanded="true" height="82" name="Generate Attributes" width="90" x="246" y="85">
        <list key="function_descriptions">
          <parameter key="generated_attribute" value="if(X1&lt;[average-std],1,if(X1&gt;[average+std],3,2))"/>
        </list>
        <parameter key="keep_all" value="true"/>
      </operator>
      <connect from_op="Create ExampleSet" from_port="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 this helps,

Regards,

Lionel