Vector analysis of multi-measurements identification

Summary Vector analysis is suggested for any identification problem which involves the comparison of “unknown” with standards and which requires several experiments in order to enable the identification. It is shown that the method of least geometric distance and the method of scalar product (spectral contact angle) are the same if the distance is measured for points on a hypersphere with unit radius. Any one of these methods can be used. It is important to normalize each vector to unit length.