统计工作者 meaning in English

statistician

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
非参数回归模型，由于其回归函数的形式可以任意，而且对随机变量( x ， y )的分布限制较少，因而在实际中有着广泛的应用背景。几十年来，统计工作者对这一模型进行了深入细致的研究。无论在理论上还是应用上，都取得了许多优秀成果。