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    Loops in SPSS - creating new variable based on multiple loops??

    Hi, I am looking for help! Maybe someone here knows the answer? I want to make a new variable (in SPSS) Date_flare_FU (Date of a disease flare during follow up). This variable will be based on 12 follow up visits (Date_T1 tm Date_T12 -> date), during which disease activity is assessed...