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析因设计：（Factorial Design）指以多因素为研究对象，探求各因素的主效应和因素间的交互效应。
多个处理因素的各水平进行全面组合而交叉分组进行实验的一种研究设计。析因设计既可了解各因素的作用，又可了解因素间的交互作用。所谓交互作用是指两因素或多因素间效应互不独立的情况，即当某一因素在各水平间变化时，另一个或多个因素各水平的效应也相应地发生变化。两因素间的交互作用为一级交互作用，三因素间的交互作用为二级交互作用，依此类推。
Each level of many processing element has comprehensive combination and across undertakes a kind of research of the experiment is designed in group. Because analyse designs the effect that can know each ingredient already, can understand the interaction between the element again. Alleged interact is the circumstance that shows two elements or each other of the effect between many element are not independent, be in when some element namely between each level when change, additional the effect of each level also produces one or more ingredient accordingly change. The interact between two elements is one class interact, the interact between 3 elements is 2 class interact, the rest may be deduced by analogy.
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关注 · 69析因设计（Factorial Design）简介：指以多因素为研究对象，探求各因素的主效应和因素间的交互效应。...
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