date format and date_add

Samuel_Schwarze
Samuel_Schwarze New Altair Community Member
edited 2024 05 in Community Q&A
Hello,

I have a problem with a macro with the name time_frame. Its value is set on 27/07/2015 1:00:00 AM

In a loop I want to increase this marco with each loop by 5 Minutes. I tried: date_add(%{time_frame},5,DATE_UNIT_DAY), but that doesnt work.

The failure message is: Invalid argument type for 'date_add'. first argument must be Calendar

So the question is, where is the mistake?

Thank you in advance,

Samuel
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Answers

  • MartinLiebig
    MartinLiebig
    Altair Employee
    Hi,

    the first argument needs to be of type date. This means it needs to be in rapidminer date (milliseconds since 1970). You can use the parsing functions to convert your date into a RM date.

    Cheers,
    Martin
  • Samuel_Schwarze
    Samuel_Schwarze New Altair Community Member
    Thank you for your answer. Could you go a bit more in detail. I tried it with the Parse Numbers operator, but that doesnt work, because the input for the operator is missing.

    Sry, I am a bloody newcomer. Thank you
  • Marco_Boeck
    Marco_Boeck New Altair Community Member
    Hi,

    you are looking for this: 

    date_add(date_parse_custom(%{time_frame}, "dd/MM/yyyy hh:mm:ss a", "us"), 5, DATE_UNIT_DAY)
    Regards,
    Marco

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