"Filtering the examples"

Shubha

Hi RM,

I need to filter out a few examples in my ExampleSet. Say suppose, I have a single nominal attribute, with the examples as:

Rapid Miner
Operators *
Process * Log
Country = XYZ
State = ABC

I need to filter out the examples which contains = or *. How do i do this? I tried with the ExampleFilter with the option "Attribute Value Filter". But was not able to get it.

Thanks,
Shubha

haddock

If you have actually tried this then please post data and process code, without which no comment is feasible.

Shubha

Here's the xml code...

<operator name="Root" class="Process" expanded="yes">
    <operator name="ExampleSource" class="ExampleSource">
        <parameter key="attributes" value="C:\Documents and Settings\shubhak\Desktop\Trial.aml"/>
    </operator>
    <operator name="ChangeAttributeNames2Generic" class="ChangeAttributeNames2Generic">
    </operator>
</operator>


And the data is attached as "ToRead.txt".

[attachment deleted by admin]

haddock

Not sure how you imagined that would filter your examples, but this does.

<operator name="Root" class="Process" expanded="yes">
    <operator name="NominalExampleSetGenerator" class="NominalExampleSetGenerator">
    </operator>
    <operator name="Mapping" class="Mapping" breakpoints="after">
        <parameter key="attributes"	value="att1"/>
        <list key="value_mappings">
          <parameter key="blob*blob"	value="value1"/>
          <parameter key="blob=blob"	value="value2"/>
        </list>
    </operator>
    <operator name="ExampleFilter" class="ExampleFilter">
        <parameter key="condition_class"	value="attribute_value_filter"/>
        <parameter key="parameter_string"	value="att1=.*=.*|.*\*.*"/>
        <parameter key="invert_filter"	value="true"/>
    </operator>
</operator>

Shubha

Thank you very much Haddock... That worked...