Estimator:
In statistics, an estimator is a rule for calculating an estimate of a given quantity based on observed data: thus the rule (the estimator), the quantity of interest (the estimand) and its result (the estimate) are distinguished.
en.wikipedia.org
估计函数:
在统计学中，估计函数是一个关于已知样本的函数，它用来估计未知总体的参数，它有时也被称为估计子; 一次估计是指把这个函数应用在一组已知的数据集上，求函数的结果.对于给定的参数，可以有许多不同的估计函数。
zh.wikipedia.org
This article uses material from the Wikipedia articles %@, which are released under the Creative Commons Attribution-Share-Alike License 3.0.
Estimator估计函数