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在甘蔗科学研究中通常用多元回归来表示多个变量间的关系。例如影响不同甘蔗品种间甘蔗群体在一定株龄下的光照度是可能与叶宽、叶长、叶企、叶厚、叶面积、叶体积有不同程度的关系;可能与有的性状关系较密切;与有的性状关系不那么密切,或者与有的性状简直无大关系。我们了解到农作物的株型特别是叶型与光照度有密切关系的。现假设例子,作为“逐步回归分
In sugarcane science, multivariate regression is often used to express the relationship between multiple variables. For example, the light intensity of sugarcane population under different plant ages may affect the leaf width, leaf length, leaf size, leaf thickness, leaf area and leaf volume to a certain degree, which may be related to some traits. Some traits are not so closely related to one another, or almost irrelevant to some traits. We understand that plant type, especially leaves, is closely related to light intensity. Now assume an example, as a "step by step regression