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"Filtering the examples"

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

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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...