How to filter example values based on the attribute names ?

lionelderkrikorlionelderkrikor Moderator, RapidMiner Certified Analyst, Member Posts: 731   Unicorn
edited June 14 in Help
Dear all,

I propose an easy challenge in appearance (in appearance only)...  After many tests, I must admit that 
I'm totally stuck.

My process produces an example set with some attributes (the number of generated attributes is variable according to the set-up of the user) : 


For a given attribute, I want to filter the example values based on the attribute name : 
 - if the example value contains the attribute name, then the example is conserved.
 -  if the example value does not contain the attribute name, then the example is removed.
To perform this task, I try to used a Filter Examples operator inside a Loop Attributes subprocess with the following set-up : 
 - condition class = expression and parameter expression
  = > this solution produces an empty example set !

 - condition class = custom_filters and   filters = 


 = > this solution raises an error ("Instantiation error")


So I'm searching a 100 % native RapidMiner process (no Python / R scripts) to filter example values based on the 
attribute name. Is it possible ?

My data (.pdf file) is in attached file.
My process : 
<?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="text:read_document" compatibility="8.1.000" expanded="true" height="68" name="Read Document" width="90" x="45" y="85">
        <parameter key="file" value="C:\Users\Lionel\Downloads\FeatureSelection_MRMR_rapidminer.pdf"/>
        <parameter key="extract_text_only" value="true"/>
        <parameter key="use_file_extension_as_type" value="true"/>
        <parameter key="content_type" value="txt"/>
        <parameter key="encoding" value="SYSTEM"/>
      </operator>
      <operator activated="true" class="text:process_documents" compatibility="8.1.000" expanded="true" height="103" name="Process Documents" width="90" x="179" y="34">
        <parameter key="create_word_vector" value="true"/>
        <parameter key="vector_creation" value="TF-IDF"/>
        <parameter key="add_meta_information" value="true"/>
        <parameter key="keep_text" value="false"/>
        <parameter key="prune_method" value="none"/>
        <parameter key="prune_below_percent" value="3.0"/>
        <parameter key="prune_above_percent" value="30.0"/>
        <parameter key="prune_below_rank" value="0.05"/>
        <parameter key="prune_above_rank" value="0.95"/>
        <parameter key="datamanagement" value="double_sparse_array"/>
        <parameter key="data_management" value="auto"/>
        <process expanded="true">
          <operator activated="true" class="text:tokenize" compatibility="8.1.000" expanded="true" height="68" name="Tokenize" width="90" x="313" y="85">
            <parameter key="mode" value="linguistic sentences"/>
            <parameter key="characters" value=".:"/>
            <parameter key="language" value="English"/>
            <parameter key="max_token_length" value="3"/>
          </operator>
          <connect from_port="document" to_op="Tokenize" to_port="document"/>
          <connect from_op="Tokenize" from_port="document" to_port="document 1"/>
          <portSpacing port="source_document" spacing="0"/>
          <portSpacing port="sink_document 1" spacing="0"/>
          <portSpacing port="sink_document 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="multiply" compatibility="9.2.001" expanded="true" height="103" name="Multiply" width="90" x="413" y="34"/>
      <operator activated="true" class="select_attributes" compatibility="9.2.001" expanded="true" height="82" name="Select Attributes (2)" width="90" x="1988" y="238">
        <parameter key="attribute_filter_type" value="single"/>
        <parameter key="attribute" value="metadata_file"/>
        <parameter key="attributes" value=""/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="true"/>
      </operator>
      <operator activated="true" class="generate_id" compatibility="9.2.001" expanded="true" height="82" name="Generate ID (3)" width="90" x="2122" y="238">
        <parameter key="create_nominal_ids" value="false"/>
        <parameter key="offset" value="0"/>
      </operator>
      <operator activated="true" class="transpose" compatibility="9.2.001" expanded="true" height="82" name="Transpose" width="90" x="648" y="34"/>
      <operator activated="true" class="set_role" compatibility="9.2.001" expanded="true" height="82" name="Set Role" width="90" x="782" y="34">
        <parameter key="attribute_name" value="id"/>
        <parameter key="target_role" value="regular"/>
        <list key="set_additional_roles"/>
      </operator>
      <operator activated="true" class="rename" compatibility="9.2.001" expanded="true" height="82" name="Rename" width="90" x="916" y="34">
        <parameter key="old_name" value="id"/>
        <parameter key="new_name" value="text"/>
        <list key="rename_additional_attributes"/>
      </operator>
      <operator activated="true" class="generate_id" compatibility="9.2.001" expanded="true" height="82" name="Generate ID (2)" width="90" x="1050" y="34">
        <parameter key="create_nominal_ids" value="false"/>
        <parameter key="offset" value="0"/>
      </operator>
      <operator activated="true" class="operator_toolbox:create_exampleset" compatibility="2.0.001" expanded="true" height="68" name="Create ExampleSet (3)" origin="GENERATED_TUTORIAL" width="90" x="45" y="187">
        <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="input_csv_text" value="searched_item&#10;feature selection&#10;forward selection&#10;software revenue&#10;software license revenue&#10;software licenses revenue&#10;"/>
        <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="false"/>
        <parameter key="empty_strings_as_missing_values" value="true"/>
        <description align="center" color="transparent" colored="false" width="126">Enter your searched items here</description>
      </operator>
      <operator activated="true" class="concurrency:loop_values" compatibility="9.2.001" expanded="true" height="82" name="Loop Values" width="90" x="313" y="187">
        <parameter key="attribute" value="searched_item"/>
        <parameter key="iteration_macro" value="loop_value"/>
        <parameter key="reuse_results" value="true"/>
        <parameter key="enable_parallel_execution" value="true"/>
        <process expanded="true">
          <operator activated="true" class="generate_attributes" compatibility="9.2.001" expanded="true" height="82" name="Generate Attributes (2)" width="90" x="380" y="34">
            <list key="function_descriptions">
              <parameter key="%{loop_value}" value="1"/>
            </list>
            <parameter key="keep_all" value="true"/>
          </operator>
          <connect from_port="input 1" to_op="Generate Attributes (2)" to_port="example set input"/>
          <connect from_op="Generate Attributes (2)" from_port="example set output" to_port="output 1"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="source_input 2" spacing="0"/>
          <portSpacing port="sink_output 1" spacing="0"/>
          <portSpacing port="sink_output 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="generate_id" compatibility="9.2.001" expanded="true" height="82" name="Generate ID" width="90" x="715" y="187">
        <parameter key="create_nominal_ids" value="false"/>
        <parameter key="offset" value="0"/>
      </operator>
      <operator activated="true" class="concurrency:join" compatibility="9.2.001" expanded="true" height="82" name="Join" width="90" x="1184" y="85">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="left"/>
        <parameter key="use_id_attribute_as_key" value="true"/>
        <list key="key_attributes"/>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="true" class="concurrency:loop_attributes" compatibility="9.2.001" expanded="true" height="82" name="Loop Attributes" width="90" x="1318" y="85">
        <parameter key="attribute_filter_type" value="subset"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value="id|Macro|searched_item|text"/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="true"/>
        <parameter key="include_special_attributes" value="false"/>
        <parameter key="attribute_name_macro" value="loop_attribute"/>
        <parameter key="reuse_results" value="true"/>
        <parameter key="enable_parallel_execution" value="true"/>
        <process expanded="true">
          <operator activated="true" class="generate_attributes" compatibility="9.2.001" expanded="true" height="82" name="Generate Attributes (3)" width="90" x="380" y="34">
            <list key="function_descriptions">
              <parameter key="%{loop_attribute}" value="text"/>
            </list>
            <parameter key="keep_all" value="true"/>
          </operator>
          <connect from_port="input 1" to_op="Generate Attributes (3)" to_port="example set input"/>
          <connect from_op="Generate Attributes (3)" from_port="example set output" to_port="output 1"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="source_input 2" spacing="0"/>
          <portSpacing port="sink_output 1" spacing="0"/>
          <portSpacing port="sink_output 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="nominal_to_text" compatibility="9.2.001" expanded="true" height="82" name="Nominal to Text" width="90" x="1452" y="85">
        <parameter key="attribute_filter_type" value="all"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value=""/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="nominal"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="file_path"/>
        <parameter key="block_type" value="single_value"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="single_value"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="false"/>
      </operator>
      <operator activated="true" breakpoints="after" class="select_attributes" compatibility="9.2.001" expanded="true" height="82" name="Select Attributes" width="90" x="1586" y="85">
        <parameter key="attribute_filter_type" value="subset"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value="att_1|id|Macro|text|Value|searched_item"/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="true"/>
        <parameter key="include_special_attributes" value="true"/>
      </operator>
      <operator activated="true" class="concurrency:loop_attributes" compatibility="9.2.001" expanded="true" height="82" name="Loop Attributes (2)" width="90" x="1854" y="85">
        <parameter key="attribute_filter_type" value="subset"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value="id|Macro|text|Value"/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="true"/>
        <parameter key="include_special_attributes" value="false"/>
        <parameter key="attribute_name_macro" value="loop_attribute"/>
        <parameter key="reuse_results" value="false"/>
        <parameter key="enable_parallel_execution" value="true"/>
        <process expanded="true">
          <operator activated="true" breakpoints="after" class="filter_examples" compatibility="9.2.001" expanded="true" height="103" name="Filter Examples (2)" width="90" x="380" y="34">
            <parameter key="parameter_expression" value="contains(%{loop_attribute},#{loop_attribute})"/>
            <parameter key="condition_class" value="custom_filters"/>
            <parameter key="invert_filter" value="false"/>
            <list key="filters_list">
              <parameter key="filters_entry_key" value="%{loop_attribute}.contains.#{loop_attribute}"/>
            </list>
            <parameter key="filters_logic_and" value="false"/>
            <parameter key="filters_check_metadata" value="true"/>
          </operator>
          <connect from_port="input 1" to_op="Filter Examples (2)" to_port="example set input"/>
          <connect from_op="Filter Examples (2)" from_port="example set output" to_port="output 1"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="source_input 2" spacing="0"/>
          <portSpacing port="sink_output 1" spacing="0"/>
          <portSpacing port="sink_output 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="subprocess" compatibility="9.2.001" expanded="true" height="82" name="Union Append" origin="GENERATED_COMMUNITY" width="90" x="1988" y="85">
        <process expanded="true">
          <operator activated="true" class="loop_collection" compatibility="9.2.001" expanded="true" height="82" name="Output (4)" origin="GENERATED_COMMUNITY" width="90" x="45" y="34">
            <parameter key="set_iteration_macro" value="true"/>
            <parameter key="macro_name" value="iteration"/>
            <parameter key="macro_start_value" value="1"/>
            <parameter key="unfold" value="false"/>
            <process expanded="true">
              <operator activated="false" breakpoints="after" class="select" compatibility="9.2.001" expanded="true" height="68" name="Select (5)" origin="GENERATED_COMMUNITY" width="90" x="112" y="34">
                <parameter key="index" value="%{iteration}"/>
                <parameter key="unfold" value="false"/>
              </operator>
              <operator activated="true" class="branch" compatibility="9.2.001" expanded="true" height="82" name="Branch (2)" origin="GENERATED_COMMUNITY" width="90" x="313" y="34">
                <parameter key="condition_type" value="expression"/>
                <parameter key="expression" value="%{iteration}==1"/>
                <parameter key="io_object" value="ANOVAMatrix"/>
                <parameter key="return_inner_output" value="true"/>
                <process expanded="true">
                  <connect from_port="condition" to_port="input 1"/>
                  <portSpacing port="source_condition" spacing="0"/>
                  <portSpacing port="source_input 1" spacing="0"/>
                  <portSpacing port="sink_input 1" spacing="0"/>
                  <portSpacing port="sink_input 2" spacing="0"/>
                </process>
                <process expanded="true">
                  <operator activated="true" class="recall" compatibility="9.2.001" expanded="true" height="68" name="Recall (5)" origin="GENERATED_COMMUNITY" width="90" x="45" y="187">
                    <parameter key="name" value="LoopData"/>
                    <parameter key="io_object" value="ExampleSet"/>
                    <parameter key="remove_from_store" value="true"/>
                  </operator>
                  <operator activated="true" class="union" compatibility="9.2.001" expanded="true" height="82" name="Union (2)" origin="GENERATED_COMMUNITY" width="90" x="179" y="34"/>
                  <connect from_port="condition" to_op="Union (2)" to_port="example set 1"/>
                  <connect from_op="Recall (5)" from_port="result" to_op="Union (2)" to_port="example set 2"/>
                  <connect from_op="Union (2)" from_port="union" to_port="input 1"/>
                  <portSpacing port="source_condition" spacing="0"/>
                  <portSpacing port="source_input 1" spacing="0"/>
                  <portSpacing port="sink_input 1" spacing="0"/>
                  <portSpacing port="sink_input 2" spacing="0"/>
                </process>
              </operator>
              <operator activated="true" class="remember" compatibility="9.2.001" expanded="true" height="68" name="Remember (5)" origin="GENERATED_COMMUNITY" width="90" x="581" y="34">
                <parameter key="name" value="LoopData"/>
                <parameter key="io_object" value="ExampleSet"/>
                <parameter key="store_which" value="1"/>
                <parameter key="remove_from_process" value="true"/>
              </operator>
              <connect from_port="single" to_op="Branch (2)" to_port="condition"/>
              <connect from_op="Branch (2)" from_port="input 1" to_op="Remember (5)" to_port="store"/>
              <connect from_op="Remember (5)" from_port="stored" to_port="output 1"/>
              <portSpacing port="source_single" spacing="0"/>
              <portSpacing port="sink_output 1" spacing="0"/>
              <portSpacing port="sink_output 2" spacing="0"/>
            </process>
          </operator>
          <operator activated="true" class="select" compatibility="9.2.001" expanded="true" height="68" name="Select (6)" origin="GENERATED_COMMUNITY" width="90" x="179" y="34">
            <parameter key="index" value="%{iteration}"/>
            <parameter key="unfold" value="false"/>
          </operator>
          <connect from_port="in 1" to_op="Output (4)" to_port="collection"/>
          <connect from_op="Output (4)" from_port="output 1" to_op="Select (6)" to_port="collection"/>
          <connect from_op="Select (6)" from_port="selected" to_port="out 1"/>
          <portSpacing port="source_in 1" spacing="0"/>
          <portSpacing port="source_in 2" spacing="0"/>
          <portSpacing port="sink_out 1" spacing="0"/>
          <portSpacing port="sink_out 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="concurrency:loop_attributes" compatibility="9.2.001" expanded="true" height="82" name="Loop Attributes (3)" width="90" x="2122" y="85">
        <parameter key="attribute_filter_type" value="all"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value=""/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="attribute_value"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="false"/>
        <parameter key="attribute_name_macro" value="loop_attribute"/>
        <parameter key="reuse_results" value="true"/>
        <parameter key="enable_parallel_execution" value="true"/>
        <process expanded="true">
          <operator activated="true" class="remove_duplicates" compatibility="9.2.001" expanded="true" height="103" name="Remove Duplicates" width="90" x="380" y="34">
            <parameter key="attribute_filter_type" value="single"/>
            <parameter key="attribute" value="%{loop_attribute}"/>
            <parameter key="attributes" value=""/>
            <parameter key="use_except_expression" value="false"/>
            <parameter key="value_type" value="attribute_value"/>
            <parameter key="use_value_type_exception" value="false"/>
            <parameter key="except_value_type" value="time"/>
            <parameter key="block_type" value="attribute_block"/>
            <parameter key="use_block_type_exception" value="false"/>
            <parameter key="except_block_type" value="value_matrix_row_start"/>
            <parameter key="invert_selection" value="false"/>
            <parameter key="include_special_attributes" value="false"/>
            <parameter key="treat_missing_values_as_duplicates" value="false"/>
          </operator>
          <connect from_port="input 1" to_op="Remove Duplicates" to_port="example set input"/>
          <connect from_op="Remove Duplicates" from_port="example set output" to_port="output 1"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="source_input 2" spacing="0"/>
          <portSpacing port="sink_output 1" spacing="0"/>
          <portSpacing port="sink_output 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="operator_toolbox:filter_missing_examples" compatibility="2.0.001" expanded="true" height="82" name="Filter Examples with Missing Values" width="90" x="2256" y="85">
        <parameter key="filter_method" value="one or more non-missing"/>
        <parameter key="maximum_number_of_missings" value="100"/>
        <parameter key="maximum_relative_number_of_missings" value="0.1"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="false"/>
      </operator>
      <operator activated="true" class="generate_id" compatibility="9.2.001" expanded="true" height="82" name="Generate ID (4)" width="90" x="2390" y="136">
        <parameter key="create_nominal_ids" value="false"/>
        <parameter key="offset" value="0"/>
      </operator>
      <operator activated="true" class="concurrency:join" compatibility="9.2.001" expanded="true" height="82" name="Join (2)" width="90" x="2524" y="136">
        <parameter key="remove_double_attributes" value="true"/>
        <parameter key="join_type" value="right"/>
        <parameter key="use_id_attribute_as_key" value="true"/>
        <list key="key_attributes"/>
        <parameter key="keep_both_join_attributes" value="false"/>
      </operator>
      <operator activated="true" class="time_series:replace_missing_values" compatibility="9.2.001" expanded="true" height="68" name="Replace Missing Values (Series)" width="90" x="2658" y="136">
        <parameter key="attribute_filter_type" value="single"/>
        <parameter key="attribute" value="metadata_file"/>
        <parameter key="attributes" value=""/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="nominal"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="single_value"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="true"/>
        <parameter key="has_indices" value="false"/>
        <parameter key="indices_attribute" value=""/>
        <parameter key="overwrite_attributes" value="true"/>
        <parameter key="new_attributes_postfix" value="_cleaned"/>
        <parameter key="replace_type_numerical" value="previous value"/>
        <parameter key="replace_type_nominal" value="previous value"/>
        <parameter key="replace_type_date_time" value="previous value"/>
        <parameter key="replace_value_numerical" value="0.0"/>
        <parameter key="replace_value_nominal" value="unknown"/>
        <parameter key="skip_other_missings" value="true"/>
        <parameter key="replace_infinity" value="true"/>
        <parameter key="replace_empty_strings" value="true"/>
        <parameter key="ensure_finite_values" value="false"/>
      </operator>
      <connect from_op="Read Document" from_port="output" to_op="Process Documents" to_port="documents 1"/>
      <connect from_op="Process Documents" from_port="example set" to_op="Multiply" to_port="input"/>
      <connect from_op="Multiply" from_port="output 1" to_op="Transpose" to_port="example set input"/>
      <connect from_op="Multiply" from_port="output 2" to_op="Select Attributes (2)" to_port="example set input"/>
      <connect from_op="Select Attributes (2)" from_port="example set output" to_op="Generate ID (3)" to_port="example set input"/>
      <connect from_op="Generate ID (3)" from_port="example set output" to_op="Join (2)" to_port="left"/>
      <connect from_op="Transpose" from_port="example set output" to_op="Set Role" to_port="example set input"/>
      <connect from_op="Set Role" from_port="example set output" to_op="Rename" to_port="example set input"/>
      <connect from_op="Rename" from_port="example set output" to_op="Generate ID (2)" to_port="example set input"/>
      <connect from_op="Generate ID (2)" from_port="example set output" to_op="Join" to_port="left"/>
      <connect from_op="Create ExampleSet (3)" from_port="output" to_op="Loop Values" to_port="input 1"/>
      <connect from_op="Loop Values" from_port="output 1" to_op="Generate ID" to_port="example set input"/>
      <connect from_op="Generate ID" from_port="example set output" to_op="Join" to_port="right"/>
      <connect from_op="Join" from_port="join" to_op="Loop Attributes" to_port="input 1"/>
      <connect from_op="Loop Attributes" from_port="output 1" to_op="Nominal to Text" to_port="example set input"/>
      <connect from_op="Nominal to Text" from_port="example set output" to_op="Select Attributes" to_port="example set input"/>
      <connect from_op="Select Attributes" from_port="example set output" to_op="Loop Attributes (2)" to_port="input 1"/>
      <connect from_op="Loop Attributes (2)" from_port="output 1" to_op="Union Append" to_port="in 1"/>
      <connect from_op="Union Append" from_port="out 1" to_op="Loop Attributes (3)" to_port="input 1"/>
      <connect from_op="Loop Attributes (3)" from_port="output 1" to_op="Filter Examples with Missing Values" to_port="example set"/>
      <connect from_op="Filter Examples with Missing Values" from_port="filtered example set" to_op="Generate ID (4)" to_port="example set input"/>
      <connect from_op="Generate ID (4)" from_port="example set output" to_op="Join (2)" to_port="right"/>
      <connect from_op="Join (2)" from_port="join" to_op="Replace Missing Values (Series)" to_port="example set"/>
      <connect from_op="Replace Missing Values (Series)" from_port="example set" 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>
Thanks for your listening,

Regards,

Lionel




Best Answers

  • lionelderkrikorlionelderkrikor Posts: 731   Unicorn
    Solution Accepted
    Hi @Telcontar120,

    Thanks for your answer. I'm not sure to understand, can you develop your approach ?

    Regards,

    Lionel
  • tftemmetftemme Posts: 92  RM Research
    edited May 14 Solution Accepted
    Hi @lionelderkrikor

    I think @Telcontar120 is referring to the fact that the custom filters in Filter Examples cannot handle macros in the attribute field, while Select Attributes can. So you have to circumvent this. I would just use a Rename operator with renaming the %{loop_attribute} to current_attribute (or similar and using this in the Filter Examples. And renaming the current_attribute back to %{loop_attribute}.

    Below an demo process:

    <?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="179" y="34">
            <parameter key="generator_type" value="attribute functions"/>
            <parameter key="number_of_examples" value="6"/>
            <parameter key="use_stepsize" value="false"/>
            <list key="function_descriptions">
              <parameter key="a" value="if(id==1,&quot;a&quot;,&quot;ldjf&quot;)"/>
              <parameter key="b" value="if(id==2,&quot;b&quot;,&quot;fd&quot;)"/>
              <parameter key="c" value="if(id==3,&quot;c&quot;,&quot;j78th&quot;)"/>
            </list>
            <parameter key="add_id_attribute" value="true"/>
            <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="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="concurrency:loop_attributes" compatibility="9.2.001" expanded="true" height="82" name="Loop Attributes" width="90" x="313" y="34">
            <parameter key="attribute_filter_type" value="all"/>
            <parameter key="attribute" value=""/>
            <parameter key="attributes" value=""/>
            <parameter key="use_except_expression" value="false"/>
            <parameter key="value_type" value="attribute_value"/>
            <parameter key="use_value_type_exception" value="false"/>
            <parameter key="except_value_type" value="time"/>
            <parameter key="block_type" value="attribute_block"/>
            <parameter key="use_block_type_exception" value="false"/>
            <parameter key="except_block_type" value="value_matrix_row_start"/>
            <parameter key="invert_selection" value="false"/>
            <parameter key="include_special_attributes" value="false"/>
            <parameter key="attribute_name_macro" value="loop_attribute"/>
            <parameter key="reuse_results" value="false"/>
            <parameter key="enable_parallel_execution" value="true"/>
            <process expanded="true">
              <operator activated="true" class="rename" compatibility="9.2.001" expanded="true" height="82" name="Rename" width="90" x="112" y="34">
                <parameter key="old_name" value="%{loop_attribute}"/>
                <parameter key="new_name" value="current_attribute"/>
                <list key="rename_additional_attributes"/>
              </operator>
              <operator activated="true" class="filter_examples" compatibility="9.2.001" expanded="true" height="103" name="Filter Examples" width="90" x="313" 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_entry_key" value="current_attribute.contains.%{loop_attribute}"/>
                </list>
                <parameter key="filters_logic_and" value="true"/>
                <parameter key="filters_check_metadata" value="true"/>
              </operator>
              <operator activated="true" class="rename" compatibility="9.2.001" expanded="true" height="82" name="Rename (2)" width="90" x="514" y="34">
                <parameter key="old_name" value="current_attribute"/>
                <parameter key="new_name" value="%{loop_attribute}"/>
                <list key="rename_additional_attributes"/>
              </operator>
              <connect from_port="input 1" to_op="Rename" to_port="example set input"/>
              <connect from_op="Rename" from_port="example set output" to_op="Filter Examples" to_port="example set input"/>
              <connect from_op="Filter Examples" from_port="example set output" to_op="Rename (2)" to_port="example set input"/>
              <connect from_op="Rename (2)" from_port="example set output" to_port="output 1"/>
              <portSpacing port="source_input 1" spacing="0"/>
              <portSpacing port="source_input 2" spacing="0"/>
              <portSpacing port="sink_output 1" spacing="0"/>
              <portSpacing port="sink_output 2" spacing="0"/>
            </process>
          </operator>
          <operator activated="true" class="append" compatibility="9.2.001" expanded="true" height="82" name="Append" width="90" x="447" y="34">
            <parameter key="datamanagement" value="double_array"/>
            <parameter key="data_management" value="auto"/>
            <parameter key="merge_type" value="all"/>
          </operator>
          <connect from_op="Create ExampleSet" from_port="output" to_op="Loop Attributes" to_port="input 1"/>
          <connect from_op="Loop Attributes" from_port="output 1" to_op="Append" to_port="example set 1"/>
          <connect from_op="Append" from_port="merged set" 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>
    


Answers

  • lionelderkrikorlionelderkrikor Moderator, RapidMiner Certified Analyst, Member Posts: 731   Unicorn
    Hi,

    @Telcontar120, OK , I understood.

    @tftemme, I must admit that your solution is ingenious.

    To conclude, thanks you both :  the combinaison of your suggestions solves this problem.

    Regards,

    Lionel
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