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Microsoft® Excel® 2010 Formulas & Functions Inside Out by Helmut Reinke Egbert Jeschke Sara Unverhau, Eckehard Pfeifer, Bodo Fienitz, and Jens Bock

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LOGEST()

Syntax. LOGEST(known_y’s,known_x’s,const,stats)

Definition. This function calculates the exponential curve in regression analyses and returns a value array describing this curve. Because this function returns an array of values, it must be entered as an array formula.

Arguments

  • known_y’s (required). The y-values you already know from the relationship y = b * mx

    • If the known_y’s array consists of a single column, then each column in the known_x’s array is interpreted as a separate variable.

    • If the known_y’s array consists of a single row, then each row in the known_x’s array is interpreted as a separate variable.

  • known_x’s (optional). The x-values you already know from the relationship y = b * mx

    • The known_x’s array can include one or more sets ...

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