combine some excel files

sara20sara20 Member Posts: 110 Unicorn
edited July 2020 in Help

I need to read some excel rows in different excel files and make one new excel file with those rows. Now how is it possible with RM?


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    jacobcybulskijacobcybulski Member, University Professor Posts: 391 Unicorn
    You can use several Read Excel operators to get your spreadsheets in, then Append, and Write Excel.
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    MarcoBarradasMarcoBarradas Administrator, Employee, RapidMiner Certified Analyst, Member Posts: 272 Unicorn
    Hi @sara20 you could use a Loop Files operator  with a Read Excel inside and and an Append and a Write Excel angt the end.
    You could copy this basic setup
    Inside the Loop Files you could do any type of data cleansing and filtering that you could need.

    <?xml version="1.0" encoding="UTF-8"?><process version="9.7.001">
      <operator activated="true" class="process" compatibility="9.7.001" 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="concurrency:loop_files" compatibility="9.7.001" expanded="true" height="82" name="Loop Files" width="90" x="313" y="34">
            <parameter key="filter_type" value="regex"/>
            <parameter key="filter_by_regex" value=".*xls"/>
            <parameter key="recursive" value="false"/>
            <parameter key="enable_macros" value="false"/>
            <parameter key="macro_for_file_name" value="file_name"/>
            <parameter key="macro_for_file_type" value="file_type"/>
            <parameter key="macro_for_folder_name" value="folder_name"/>
            <parameter key="reuse_results" value="false"/>
            <parameter key="enable_parallel_execution" value="true"/>
            <process expanded="true">
              <operator activated="true" class="read_excel" compatibility="9.7.001" expanded="true" height="68" name="Read Excel" width="90" x="246" y="34">
                <parameter key="sheet_selection" value="sheet number"/>
                <parameter key="sheet_number" value="1"/>
                <parameter key="imported_cell_range" value="A1"/>
                <parameter key="encoding" value="SYSTEM"/>
                <parameter key="first_row_as_names" value="true"/>
                <list key="annotations"/>
                <parameter key="date_format" value=""/>
                <parameter key="time_zone" value="SYSTEM"/>
                <parameter key="locale" value="English (United States)"/>
                <parameter key="read_all_values_as_polynominal" value="false"/>
                <list key="data_set_meta_data_information"/>
                <parameter key="read_not_matching_values_as_missings" value="true"/>
                <parameter key="datamanagement" value="double_array"/>
                <parameter key="data_management" value="auto"/>
              <connect from_port="file object" to_op="Read Excel" to_port="file"/>
              <connect from_op="Read Excel" from_port="output" to_port="output 1"/>
              <portSpacing port="source_file object" spacing="0"/>
              <portSpacing port="source_input 1" spacing="0"/>
              <portSpacing port="sink_output 1" spacing="0"/>
              <portSpacing port="sink_output 2" spacing="0"/>
          <operator activated="true" class="append" compatibility="9.7.001" 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 activated="true" class="write_excel" compatibility="9.7.001" expanded="true" height="103" name="Write Excel" width="90" x="581" y="34">
            <parameter key="file_format" value="xlsx"/>
            <enumeration key="sheet_names"/>
            <parameter key="sheet_name" value="RapidMiner Data"/>
            <parameter key="date_format" value="yyyy-MM-dd HH:mm:ss"/>
            <parameter key="number_format" value="#.0"/>
            <parameter key="encoding" value="SYSTEM"/>
          <connect from_op="Loop Files" from_port="output 1" to_op="Append" to_port="example set 1"/>
          <connect from_op="Append" from_port="merged set" to_op="Write Excel" to_port="input"/>
          <connect from_op="Write Excel" from_port="file" 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"/>

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    sara20sara20 Member Posts: 110 Unicorn
    edited July 2020


    Thank you very much for your answers. I will try them. :)

    Best regards
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