variate model造句

What these examples all have in common is that on a weekly basis ( say ) numerical values can be recorded for each factor and one would expect particular streams of energy consumption to correlate with them either singly or in a multi-variate model.
They are the univariate model ( He called it the " simple scheme " . ) in which only one behavioural determinant was allowed in a stimulus-response type of relationship; the multi-variate model ( He called it a " reduced form scheme " . ) in which numerous independent variables were assumed to determine buyer behaviour; and finally the " system of equations " model ( He called it a " structural scheme " or " process scheme " . ) in which numerous functional relations ( either univariate or multi-variate ) interact in a complex system of equations.
It's difficult to find variate model in a sentence. 用variate model造句挺难的