Problem when trying to retrieve data

MarlaBot

A RapidMiner user wants to know the answer to this question: "Hey, I am connecting retrieve data operator to filter example, since I want to filter the missing values, I get no variable in the first cell of "enter value." I am attaching my XML process. Do you know why this is happening?"

<?xml version="1.0" encoding="UTF-8"?><process version="9.2.000"> <context> <input/> <output/> <macros/> </context> <operator activated="true" class="process" compatibility="9.2.000" 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="retrieve" compatibility="9.2.000" expanded="true" height="68" name="Retrieve" width="90" x="45" y="34"> <parameter key="repository_entry" value="//Local Repository/data/DataSet1"/> </operator> <operator activated="true" class="filter_examples" compatibility="9.2.000" expanded="true" height="103" name="Filter Examples" width="90" x="179" y="34"> <parameter key="parameter_expression" value=""/> <parameter key="condition_class" value="custom_filters"/> <parameter key="invert_filter" value="false"/> <list key="filters_list"/> <parameter key="filters_logic_and" value="true"/> <parameter key="filters_check_metadata" value="true"/> </operator> <connect from_op="Retrieve" from_port="output" to_op="Filter Examples" to_port="example set input"/> <connect from_op="Filter Examples" 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>

varunm1

Your XML is fine as I cannot reproduce this issue without an original dataset. If possible, can you provide the dataset

dbabrauskaite

Yes, attaching the dataset. Thank you. 

varunm1

Thanks @dbabrauskaite for providing dataset. I checked with the provided dataset and it seems to work fine for me. XML and screenshots below. Can you ask the user to use this XML and connect his the dataset and try?

<?xml version="1.0" encoding="UTF-8"?><process version="9.2.000">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="9.2.000" 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="retrieve" compatibility="9.2.000" expanded="true" height="68" name="Retrieve DataSet1" width="90" x="45" y="34">
        <parameter key="repository_entry" value="//Local Repository/RM_Comm/DataSet1"/>
      </operator>
      <operator activated="true" class="filter_examples" compatibility="9.2.000" expanded="true" height="103" name="Filter Examples" width="90" x="179" y="34">
        <parameter key="parameter_expression" value=""/>
        <parameter key="condition_class" value="custom_filters"/>
        <parameter key="invert_filter" value="false"/>
        <list key="filters_list"/>
        <parameter key="filters_logic_and" value="true"/>
        <parameter key="filters_check_metadata" value="true"/>
      </operator>
      <connect from_op="Retrieve DataSet1" from_port="output" to_op="Filter Examples" to_port="example set input"/>
      <connect from_op="Filter Examples" 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>

Gonfiaf_Zuraik

hi @varunm1 ! thank you , i am the one who had this problem and talked to your community manager MarlaBot. just signed in to contact you directly 
can we chat somewhere? or have a remote assistance so i can show u my screen directly? the issue for me is bigger than sending msgs here and screenshots, im working on a project that i have to submit tonight 


thanks a lot 

Jana

dbabrauskaite

Thank you @varunm1 . It worked fine for me as well. @Gonfiaf_Zuraik seems to be getting this error message attached. Any idea how to fix this? 

varunm1

@Gonfiaf_Zuraik I sent you a private message.

Edit: If you are unaware of how to check a private message, you can look at the below mentioned icon beside your name in the top right corner of this webpage.

varunm1

Hi @dbabrauskaite and @sgenzer

I checked it, I even tried different sample datasets provided in RM samples. The issue is with filter example operators as it is not detecting any attributes from the dataset. 

sgenzer

yep typical metadata propagation problem