Date values conversion

RyanRezel
New Altair Community Member
Hi,
I am fairly new to RM and my first task has a column with inconsistent date values, it is entered as for example 0055 for the year whereas it should be 1955, I have tried a few options but have failed can anyone provide me with some assistance, please.
Thanks
Ryan
I am fairly new to RM and my first task has a column with inconsistent date values, it is entered as for example 0055 for the year whereas it should be 1955, I have tried a few options but have failed can anyone provide me with some assistance, please.
Thanks
Ryan
Tagged:
0
Best Answer
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Hi @RyanRezel ,attached is an easy way how to do it. I am not 100% sure about your date format, so you may adapt this a bit more.Best,Martin<?xml version="1.0" encoding="UTF-8"?><process version="9.7.002">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="9.7.002" 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="9.7.002" expanded="true" height="68" name="Create ExampleSet" width="90" x="112" y="34">
<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="time_zone" value="SYSTEM"/>
<parameter key="input_csv_text" value="date 0019 0050 1920 1992"/>
<parameter key="column_separator" value=","/>
<parameter key="parse_all_as_nominal" value="true"/>
<parameter key="decimal_point_character" value="."/>
<parameter key="trim_attribute_names" value="true"/>
</operator>
<operator activated="true" class="replace" compatibility="9.7.002" expanded="true" height="82" name="Replace" width="90" x="246" y="34">
<parameter key="attribute_filter_type" value="single"/>
<parameter key="attribute" value="date"/>
<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="replace_what" value="00(\d\d)"/>
<parameter key="replace_by" value="19$1"/>
</operator>
<operator activated="false" class="nominal_to_date" compatibility="9.7.002" expanded="true" height="82" name="Nominal to Date" width="90" x="447" y="34">
<parameter key="attribute_name" value="date"/>
<parameter key="date_type" value="date"/>
<parameter key="date_format" value="yyyy"/>
<parameter key="time_zone" value="SYSTEM"/>
<parameter key="locale" value="English (United States)"/>
<parameter key="keep_old_attribute" value="false"/>
<description align="center" color="transparent" colored="false" width="126">if you want to you can convert this now</description>
</operator>
<connect from_op="Create ExampleSet" from_port="output" to_op="Replace" to_port="example set input"/>
<connect from_op="Replace" 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>
5
Answers
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Hi,that's nasty, who came up with this notation? What would be 0019? 1919 or 2019?In any case, i suspect you need to read it in as a Polynominal value and then parse the string. For example with Generate attributes.Best,Martin0
-
Hi @RyanRezel ,attached is an easy way how to do it. I am not 100% sure about your date format, so you may adapt this a bit more.Best,Martin<?xml version="1.0" encoding="UTF-8"?><process version="9.7.002">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="9.7.002" 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="9.7.002" expanded="true" height="68" name="Create ExampleSet" width="90" x="112" y="34">
<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="time_zone" value="SYSTEM"/>
<parameter key="input_csv_text" value="date 0019 0050 1920 1992"/>
<parameter key="column_separator" value=","/>
<parameter key="parse_all_as_nominal" value="true"/>
<parameter key="decimal_point_character" value="."/>
<parameter key="trim_attribute_names" value="true"/>
</operator>
<operator activated="true" class="replace" compatibility="9.7.002" expanded="true" height="82" name="Replace" width="90" x="246" y="34">
<parameter key="attribute_filter_type" value="single"/>
<parameter key="attribute" value="date"/>
<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="replace_what" value="00(\d\d)"/>
<parameter key="replace_by" value="19$1"/>
</operator>
<operator activated="false" class="nominal_to_date" compatibility="9.7.002" expanded="true" height="82" name="Nominal to Date" width="90" x="447" y="34">
<parameter key="attribute_name" value="date"/>
<parameter key="date_type" value="date"/>
<parameter key="date_format" value="yyyy"/>
<parameter key="time_zone" value="SYSTEM"/>
<parameter key="locale" value="English (United States)"/>
<parameter key="keep_old_attribute" value="false"/>
<description align="center" color="transparent" colored="false" width="126">if you want to you can convert this now</description>
</operator>
<connect from_op="Create ExampleSet" from_port="output" to_op="Replace" to_port="example set input"/>
<connect from_op="Replace" 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>
5 -
Thank you very much Martin.0