WorksheetFunction.Slope (Excel)

Returns the slope of the linear regression line through data points in known_y's and known_x's. The slope is the vertical distance divided by the horizontal distance between any two points on the line, which is the rate of change along the regression line.

The arguments must be either numbers or names, arrays, or references that contain numbers. If an array or reference argument contains text, logical values, or empty cells, those values are ignored; however, cells with the value zero are included. If known_y's and known_x's are empty or have a different number of data points, Slope returns the #N/A error value. The equation for the slope of the regression line is as follows, where x and y are the sample means AVERAGE(known_x's) and AVERAGE(known_y's):

Slope (Arg1, Arg2)

Dim dblSlope As Double
dblSlope = WorksheetFunction.Slope(Arg1:=, Arg2:=)


Arg1, Arg2

Arg1 - Known_y's - an array or cell range of numeric dependent data points

Arg2 - Known_x's - the set of independent data points