:"Predictive Data Analysis: Mastering the Skills of the Forecast Function"-Table skills免费ppt模版下载-道格办公

"Predictive Data Analysis: Mastering the Skills of the Forecast Function"

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Case

Calculate or predict future values based on existing values. This predicted value is the y value derived from the given x value. The known values are the existing x values and y values,

Linear regression is then used to predict new values. You can use this function to make predictions about future sales, inventory needs, or consumption trends.

GrammarFORECAST(x,known_y's,known_x's)

x is the data point that needs to be predicted.

known_y's is the dependent variable array or data range.

known_x's is an independent variable array or data area.

Description

• If x is nonnumeric, the FORECAST function returns the #VALUE! error value.

• If known_y's and known_x's are empty or contain a different number of data points, the FORECAST function returns the error value #N/A.

• If known_x's variance is zero, function FORECAST returns the error value #DIV/0!.

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