distributed lag model造句

The most important structured finite distributed lag model is the "'Almon lag model " '.
Other infinite distributed lag models have been proposed to allow the data to determine the shape of the lag structure.
The most common type of structured infinite distributed lag model is the "'geometric lag "', also known as the "'Koyck lag " '.
In the first equation, the dependent variable is assumed to be affected by values of the independent variable arbitrarily far in the past, so the number of lag weights is infinite and the model is called an " infinite distributed lag model ".
In an infinite distributed lag model, an infinite number of lag weights need to be estimated; clearly this can be done only if some structure is assumed for the relation between the various lag weights, with the entire infinitude of them expressible in terms of a finite number of assumed underlying parameters.
It's difficult to find distributed lag model in a sentence. 用distributed lag model造句挺难的

In the alternative, second, equation, there are only a finite number of lag weights, indicating an assumption that there is a maximum lag beyond which values of the independent variable do not affect the dependent variable; a model based on this assumption is called a " finite distributed lag model ".
In a finite distributed lag model, the parameters could be directly estimated by ordinary least squares ( assuming the number of data points sufficiently exceeds the number of lag weights ); nevertheless, such estimation may give very imprecise results due to extreme multicollinearity among the various lagged values of the independent variable, so again it may be necessary to assume some structure for the relation between the various lag weights.