混合部分因子设计的指示函数和复数编码
Indicator function and complex coding for mixed fractional factorial designs
摘要：
在一般部分析因设计中，因子的$n$水平由单位的$n$次方根编码。该装置允许多项式指示函数的理论完全推广到混合水平设计，该理论已经由Fontana和Authors（2000）针对两个水平设计引入。讨论了正交表和正则分式的性质。
英文摘要：
In a general fractional factorial design, the $n$-levels of a factor are coded by the $n$-th roots of the unity. This device allows a full generalization to mixed-level designs of the theory of the polynomial indicator function which has already been introduced for two level designs by Fontana and the Authors (2000). the properties of orthogonal arrays and regular fractions are discussed.
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