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predetermined variables 添加释义

网络释义英英释义

  先决变量

3、先决变量(Predetermined Variables)：外生变量与滞后内生变量统称为先决变量。 滞后内生变量是联立方程计量经济学模型中重要的不可缺少的一部分变量，用以反映经...

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Predetermined variables

  • abstract: Predetermined variables are variables that were determined prior to the current period. In econometric models this implies that the current period error term is uncorrelated with current and lagged values of the predetermined variable but may be correlated with future values.

以上来源于: WordNet

双语例句

  • The getopts command uses a couple of predetermined variables.

    getopts 命令使用了两个预先确定的变量。

    youdao

  • The components of the engine system are calculated iteratively in a predetermined sequence, and a modified Newton method is used to find the unknown variables of the system.

    该方法按照预定的计算顺序，对发动机系统的各个部件进行迭代计算，采用拟牛顿法求解系统可调变量。

    youdao

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