要:在混料试验的最优设计的计算中通常需要高阶的中心格子点集矩阵,该类矩

Important: In the calculation of the optimal design of the mixture experiment, a high-order central lattice point set matrix is ​​usually required. This type of matrix is ​​obtained based on a type of permutation matrix transformation. Based on this, we have studied the properties of this type of permutation matrix and gave It is shown that its application in specific mixing problems plays an important role in the study of optimal design and model parameter estimation.

To: In the calculation of the optimal design of the mixing test, it is usually necessary to have a high-order central grid sub-point matrix, which is obtained on the basis of a class of replacement array transformation, based on which we study the nature of this type of replacement array and give its application in the specific mixing problem, which has an important role in the study of optimal design and model parameter estimation.

Important: in the calculation of optimal design of mixture test, high-order central lattice point set matrix is usually needed. This kind of matrix is obtained based on a kind of permutation matrix transformation. Based on this, we study the properties of this kind of permutation matrix and give its application in concrete mixture problems, which plays an important role in the study of optimal design and model parameter estimation