Dear all,
I recently encounted a problem with the meta data after I upgraded to the latest version 5.1.008. I also updated to the latest java version. The environment is a WinXP 32bit system.
In my minimum example - see below - the aggregate operator generates a new attribute count(att1).
However, I am not able to select it in the drop down list in the rename operator afterwards.
Further, when moving the mouse over the input/ouput ports rapidminer gives me confusing information
on the meta data. I see a wrong number of attributes and the attribute just generated by the aggregate operator does not appear.
I remember, in the version I previously used, it worked fine. Now my processes generate a lot of warnings, that attributes are not there. However, they run through displaying the warning triangle sign. I played with the compatibility switch of the aggregate operator, but I couldn't notice any difference.
Does someone else experience this problem? Help would be very appreciated. :-)
Best regards,
Christian
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.1.008">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="5.1.008" expanded="true" name="Process">
<process expanded="true" height="802" width="614">
<operator activated="true" class="generate_nominal_data" compatibility="5.1.008" expanded="true" height="60" name="Generate Nominal Data" width="90" x="45" y="30"/>
<operator activated="true" class="aggregate" compatibility="5.1.008" expanded="true" height="76" name="Aggregate" width="90" x="179" y="30">
<list key="aggregation_attributes">
<parameter key="att1" value="count"/>
</list>
<parameter key="group_by_attributes" value="|att1"/>
<parameter key="only_distinct" value="true"/>
</operator>
<operator activated="true" class="multiply" compatibility="5.1.008" expanded="true" height="94" name="Multiply" width="90" x="313" y="30"/>
<operator activated="true" class="rename" compatibility="5.1.008" expanded="true" height="76" name="Rename" width="90" x="447" y="30">
<parameter key="old_name" value="att1"/>
<parameter key="new_name" value="asd"/>
<list key="rename_additional_attributes"/>
</operator>
<connect from_op="Generate Nominal Data" from_port="output" to_op="Aggregate" to_port="example set input"/>
<connect from_op="Aggregate" from_port="example set output" to_op="Multiply" to_port="input"/>
<connect from_op="Multiply" from_port="output 1" to_op="Rename" to_port="example set input"/>
<connect from_op="Multiply" from_port="output 2" to_port="result 2"/>
<connect from_op="Rename" 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"/>
<portSpacing port="sink_result 3" spacing="0"/>
</process>
</operator>
</process>
