how to calculate count of column value and store in macro

sgnarkhede2016

id          attr1
 

a1        Account Number

a2        Customer Id

a3       Customer Type

I want to store count of attr1 or id column count in "number_of_paraeter" macro (3)
both attribute datatype is nominal

<?xml version="1.0" encoding="UTF-8"?><process version="9.5.001">

  <context>

    <input/>

    <output/>

    <macros/>

  </context>

  <operator activated="true" class="process" compatibility="9.5.001" 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="false" class="retrieve" compatibility="9.5.001" expanded="true" height="68" name="Retrieve BusinessProf_Config" width="90" x="45" y="289">

        <parameter key="repository_entry" value="//RM-9/home/admin/Pelican/778580_Al-ansari Scenarios_06032020/Transaction Monitoring/Data/BusinessProf_Config"/>

      </operator>

      <operator activated="true" class="retrieve" compatibility="9.5.001" expanded="true" height="68" name="Retrieve BusinessProf_Config (2)" width="90" x="45" y="34">

        <parameter key="repository_entry" value="../Data/BusinessProf_Config"/>

      </operator>

      <operator activated="false" breakpoints="after" class="transpose" compatibility="9.5.001" expanded="true" height="82" name="Transpose (2)" width="90" x="246" y="289"/>

      <operator activated="true" class="filter_examples" compatibility="9.5.001" expanded="true" height="103" name="Filter Examples (3)" 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_entry_key" value="ENABLE.equals.Yes"/>

        </list>

        <parameter key="filters_logic_and" value="true"/>

        <parameter key="filters_check_metadata" value="true"/>

      </operator>

      <operator activated="true" class="concurrency:loop" compatibility="9.5.001" expanded="true" height="82" name="Loop" width="90" x="380" y="136">

        <parameter key="number_of_iterations" value="5"/>

        <parameter key="iteration_macro" value="iteration"/>

        <parameter key="reuse_results" value="false"/>

        <parameter key="enable_parallel_execution" value="true"/>

        <process expanded="true">

          <operator activated="true" class="filter_example_range" compatibility="9.5.001" expanded="true" height="82" name="Filter Example Range" width="90" x="45" y="34">

            <parameter key="first_example" value="%{iteration}"/>

            <parameter key="last_example" value="%{iteration}"/>

            <parameter key="invert_filter" value="false"/>

          </operator>

          <operator activated="true" class="transpose" compatibility="9.5.001" expanded="true" height="82" name="Transpose" width="90" x="179" y="34"/>

          <operator activated="true" breakpoints="after" class="filter_examples" compatibility="9.5.001" 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="att_1.is_not_missing."/>

              <parameter key="filters_entry_key" value="id.does_not_equal.ENABLE"/>

            </list>

            <parameter key="filters_logic_and" value="true"/>

            <parameter key="filters_check_metadata" value="true"/>

          </operator>

          <operator activated="true" class="extract_macro" compatibility="9.5.001" expanded="true" height="68" name="Extract Macro (2)" width="90" x="514" y="34">

            <parameter key="macro" value="number_of_parameters"/>

            <parameter key="macro_type" value="statistics"/>

            <parameter key="statistics" value="count"/>

            <parameter key="attribute_name" value="attr1"/>

            <parameter key="attribute_value" value="1"/>

            <list key="additional_macros"/>

          </operator>

          <operator activated="false" breakpoints="after" class="parse_numbers" compatibility="9.5.001" expanded="true" height="82" name="Parse Numbers" width="90" x="380" y="187">

            <parameter key="attribute_filter_type" value="all"/>

            <parameter key="attribute" value="id"/>

            <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"/>

            <parameter key="decimal_character" value="."/>

            <parameter key="grouped_digits" value="false"/>

            <parameter key="grouping_character" value=","/>

            <parameter key="infinity_representation" value=""/>

            <parameter key="unparsable_value_handling" value="fail"/>

          </operator>

          <operator activated="false" breakpoints="after" class="concurrency:loop_values" compatibility="9.5.001" expanded="true" height="82" name="Loop Values" width="90" x="648" y="136">

            <parameter key="attribute" value="id"/>

            <parameter key="iteration_macro" value="loop_value"/>

            <parameter key="reuse_results" value="false"/>

            <parameter key="enable_parallel_execution" value="true"/>

            <process expanded="true">

              <operator activated="true" class="filter_examples" compatibility="9.5.001" expanded="true" height="103" name="Filter Examples (2)" width="90" x="45" y="34">

                <parameter key="parameter_expression" value="id==%{loop_value}"/>

                <parameter key="condition_class" value="expression"/>

                <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>

              <operator activated="true" class="extract_macro" compatibility="9.5.001" expanded="true" height="68" name="Extract Macro" width="90" x="179" y="34">

                <parameter key="macro" value="key_attribute_%{loop_value}"/>

                <parameter key="macro_type" value="statistics"/>

                <parameter key="statistics" value="average"/>

                <parameter key="attribute_name" value="atr1"/>

                <parameter key="example_index" value="1"/>

                <list key="additional_macros"/>

              </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_op="Extract Macro" to_port="example set"/>

              <connect from_op="Extract Macro" from_port="example set" 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="false" class="append" compatibility="9.5.001" expanded="true" height="68" name="Append" width="90" x="581" y="238">

            <parameter key="datamanagement" value="double_array"/>

            <parameter key="data_management" value="auto"/>

            <parameter key="merge_type" value="all"/>

          </operator>

          <operator activated="false" class="operator_toolbox:group_into_collection" compatibility="2.1.000" expanded="true" height="82" name="Group Into Collection" width="90" x="715" y="238">

            <parameter key="group_by_attribute" value="att_1"/>

            <parameter key="group_by_attribute (numerical)" value=""/>

            <parameter key="sorting_order" value="none"/>

          </operator>

          <operator activated="false" breakpoints="after" class="nominal_to_numerical" compatibility="9.5.001" expanded="true" height="103" name="Nominal to Numerical" width="90" x="380" y="187">

            <parameter key="return_preprocessing_model" value="false"/>

            <parameter key="create_view" value="false"/>

            <parameter key="attribute_filter_type" value="single"/>

            <parameter key="attribute" value="id"/>

            <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"/>

            <parameter key="coding_type" value="unique integers"/>

            <parameter key="use_comparison_groups" value="false"/>

            <list key="comparison_groups"/>

            <parameter key="unexpected_value_handling" value="all 0 and warning"/>

            <parameter key="use_underscore_in_name" value="false"/>

          </operator>

          <connect from_port="input 1" to_op="Filter Example Range" to_port="example set input"/>

          <connect from_op="Filter Example Range" from_port="example set output" to_op="Transpose" to_port="example set input"/>

          <connect from_op="Transpose" 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="Extract Macro (2)" to_port="example set"/>

          <connect from_op="Append" from_port="merged set" to_op="Group Into Collection" to_port="exa"/>

          <portSpacing port="source_input 1" spacing="0"/>

          <portSpacing port="source_input 2" spacing="0"/>

          <portSpacing port="sink_output 1" spacing="0"/>

        </process>

      </operator>

      <connect from_op="Retrieve BusinessProf_Config (2)" from_port="output" to_op="Filter Examples (3)" to_port="example set input"/>

      <connect from_op="Filter Examples (3)" from_port="example set output" to_op="Loop" to_port="input 1"/>

      <portSpacing port="source_input 1" spacing="0"/>

      <portSpacing port="sink_result 1" spacing="0"/>

    </process>

  </operator>

</process>

sgnarkhede2016

Using extract macro i solved above issue