Consider a set of observations (also called features, attributes, variables or measurements) for each sample of an object or event with known class y.
设观测向量x(也被称作特征、属性、变量、测量值等)对于对象或事件的每一个采样的所属类y都是已知的。
The population mean is often written "x-bar." If you have a sample with n observations, it's the summation i = 1 to n of xi/n--that's the average.
人口均值经常写成“x-条形柱”，如果你有一个样本有n个观测者，是从i=1到n和的xi/n，这是平均值。
According to the observations of a sample of indicators, a measure of samples to choose between the targets of the similarity measurement method and use it as the basis for clustering;
根据抽样指标的观测值，选择某种度量样品之间的指标相似度的度量方法，并以此为聚类依据；
This paper presents evidents that cash-flow volatility is negatively related to firm value using a large sample consisting of 2724 firm-year observations from 1998-2008.
本文通过1998-2008年间2724例公司年样本观察值证明现金流波动率与公司价值显著负相关。
"When we analyzed a sample of graphene on copper, we made some strange observations", stohr said.
“当我们分析铜基石墨烯样品时，我们做了一些特别的观察。”stohr说。
"When we analyzed a sample of graphene on copper, we made some strange observations", stohr said.
“当我们分析铜基石墨烯样品时，我们做了一些特别的观察。”stohr说。
应用推荐