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Intercept Function
Math Statistics Class

Public Function Intercept( _
      ByRef vYValues As Variant _
    , ByRef vXValues As Variant _
    ) As Variant

Calculates the point at which a line will intercept the Y axis using existing vYValues and vXValues.
This point is based on a best-fit regression line plotted through the existing vYValues and vXValues.

Examples: 
    Intercept(Array(1, 3, 4), Array(2, 6, 9)) = 0.216216216216216
    Intercept(Array(11, 44, 22), Array(15, 23, 12)) = -14.9690721649485
See also: 
    Slope Function
    Forecast Function
    StandardError Function
    INTERCEPT Function (Microsoft Excel)
vYValues: Dependent set of data. Numeric-type array or Variant array containing only numeric elements. This function is NOT affected by the current setting of the StatVarType Property. It assumes that vYValues is an array that contains only numeric elements.
vXValues: Independent set of data. Numeric-type array or Variant array containing only numeric elements. This function assumes that vXValues is an array that contains only numeric elements.
Return value: Function returns the point at which a line will intercept the Y axis using existing vYValues and vXValues. Function returns Null if the arrays vYValues and vXValues contain a different number of elements, if both arrays are empty, or if there is some type of error, such as if the argument is a Variant array which contains an Object reference or String.

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