Nonorthogonal Analysis of Variance Using a Generalized Conjugate-Gradient Algorithm
利用广义共轭梯度算法进行非正交方差分析
A method is developed that computes an exact nonorthogonal analysis of variance using cell means. The method is iterative and does not require that the non-orthogonal design matrix be stored or formed. At each stage in the process, a balanced analysis of variance problem must be solved. A monotonicity property for the estimates of the regression sum of squares is derived that could be used to minimize iteration in hypothesis testing. An application of the algorithm to the…