例句與造句

1. nonparametric model is widely used in the practical problems, the reason is that the form of the regression function in the nonparametric model is free, and the limits to the random variate ( x, y ) are fewer . in the past several decades, this model is studied carefully by the researchers of statistics, and many achievements are arrived in both theorial fields and in applicational fields
   非參數(shù)回歸模型，由于其回歸函數(shù)的形式可以任意，而且對(duì)隨機(jī)變量(x，y)的分布限制較少，因而在實(shí)際中有著廣泛的應(yīng)用背景。幾十年來，統(tǒng)計(jì)工作者對(duì)這一模型進(jìn)行了深入細(xì)致的研究。無論在理論上還是應(yīng)用上，都取得了許多優(yōu)秀成果。
2. It's difficult to find random variate in a sentence. 用random variate造句挺難的