Windowing operator

User51984

Hello,

I run the "Windowing" operator on a fake 10-day pricing TS. Why it is coming 2 windows shorter (the most recent 2 are missing)?
Thanks,
Ivan

Input:

Output:

Process:

<?xml version="1.0" encoding="UTF-8"?><process version="9.8.001">

  <context>

    <input/>

    <output/>

    <macros/>

  </context>

  <operator activated="true" class="process" compatibility="9.8.001" 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="read_csv" compatibility="9.8.001" expanded="true" height="68" name="Read CSV" width="90" x="45" y="34">

        <parameter key="csv_file" value="C:\Users\IVANO\Dropbox\iCourses\Fnce4425\Data\Lec09-window10.csv"/>

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

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

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

        <parameter key="quotes_character" value="&quot;"/>

        <parameter key="escape_character" value="\"/>

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

        <parameter key="comment_characters" value="#"/>

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

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

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

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

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

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

        <parameter key="date_format" value="MM/dd/yyyy"/>

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

        <list key="annotations"/>

        <parameter key="time_zone" value="SYSTEM"/>

        <parameter key="locale" value="English (United States)"/>

        <parameter key="encoding" value="windows-1252"/>

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

        <list key="data_set_meta_data_information">

          <parameter key="0" value="Date.true.date.attribute"/>

          <parameter key="1" value="Price.true.integer.attribute"/>

        </list>

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

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

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

      </operator>

      <operator activated="true" class="time_series:windowing" compatibility="9.8.001" expanded="true" height="82" name="Windowing" width="90" x="179" 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="has_indices" value="false"/>

        <parameter key="indices_attribute" value="Date"/>

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

        <parameter key="unit" value="time based"/>

        <parameter key="windows_defined" value="from start"/>

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

        <parameter key="custom_end_point" value="100"/>

        <parameter key="window_size" value="20"/>

        <parameter key="custom_start_time" value="2000-01-01 00:00:00"/>

        <parameter key="custom_end_time" value="2030-01-01 00:00:00"/>

        <parameter key="date_format" value="yyyy-MM-dd HH:mm:ss"/>

        <parameter key="window_size_time" value="3.Days"/>

        <parameter key="windows_stop_definition" value="from next window start"/>

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

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

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

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

        <parameter key="step_size_time" value="1.Days"/>

        <parameter key="create_horizon_(labels)" value="true"/>

        <parameter key="horizon_attribute" value="Price"/>

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

        <parameter key="horizon_offset" value="0"/>

        <parameter key="horizon_size_time" value="1.Days"/>

        <parameter key="horizon_offset_time" value="0.Minutes"/>

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

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

        <parameter key="empty_window_handling" value="add empty exampleset"/>

      </operator>

      <connect from_op="Read CSV" from_port="output" to_op="Windowing" to_port="example set"/>

      <connect from_op="Windowing" from_port="windowed example set" to_port="result 1"/>

      <connect from_op="Windowing" from_port="original" to_port="result 2"/>

      <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>

Data:

Date,Price

1/1/2018,11

1/2/2018,12

1/3/2018,13

1/4/2018,14

1/5/2018,15

1/6/2018,16

1/7/2018,17

1/8/2018,18

1/9/2018,19

1/10/2018,20