Select three Y columns (or a range from three Y columns). If there is an associated X column, X column supplies X values; otherwise, sampling interval of the Y column or row number is used.
Select required data.
Select Plot > 2D: Vector: Vector XYAM.
Click the Vector XYAM button on the 2D Graphs toolbar.
VECTOR.OTP (installed to the program folder).
The leftmost Y column controls the Y coordinate of the vector tail (by default). The second Y column determines the angle of the vector. The angle is measured counterclockwise from a line parallel to the X axis, bisecting the vector. The third Y column controls the vector length in units of points. The Plot Details dialog box provides a control to scale the length of the vector (Format: Plot).