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Referring to other attributes and data rows when generating new attributes

User: "Emandal"
Emandal
New Altair Community Member
Updated by Jocelyn
Hi guys, I am a newbie in RapidMiner and am trying to do Time Series Analysis combined with sensex. I have forecasted values with Arima model and I would like to compare forecasted value in row x with real value in row x-1. I tried using Generate attributes operator but I am unsure on how to reffer to different attributes and rows. Does anyone have a suggestion on how to solve this?

Thanks

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Time Series
Generate Attributes
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    User: "lionelderkrikor"
    lionelderkrikor
    New Altair Community Member
    Accepted Answer
    Hi @Emandal,

    I think you need of the Lag operator and after that you can use the Generate Attributes operator to perform the comparison between the row x and row (x-1).

    Regards,

    Lionel
    User: "Emandal"
    Emandal
    New Altair Community Member
    OP
    Hi @lionelderkrikor. Lag operator helped. Thanks a lot

    Best,
    Ema
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