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What's wrong with this simple expression to calculate previous day?

    Question

  • I have written a simple formula for a column =previousday([Date]) but I get an error "Column Date cannot be found or may not be used in this expression.

    What is wrong? this looked simple....you can see that there is a date column.


    val it: unit=()


    Friday, June 21, 2013 1:24 AM

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