对于属性区域内部的定量属性抽样值,则建立了抽样值的相关函数表达式。
Correlation functions between sample values in attribute data are used to measure data sampling errors quantitatively.
但是,如果关系数据值是高度聚集的,那么行级抽样可以产生更精确的统计信息。
But, row level sampling may produce more accurate statistics if relational data values are highly clustered.
这就是为什么X平方分布的抽样分布的形状随着df值的不同而变化的原因。
This is why the shape of the Chi Square sampling distribution changes for different df values.
该设置用于查找 X平方分布的抽样分布中包含尾数区域等于alpha 断开值(0.05)的位置(或临界值)。
This setting is used to find the location (or critical value) on the Chi Square sampling distribution that includes a tail area equal to the alpha-cutoff value (0.05).
WideNoise是一款iPhone应用,它对噪音分贝值进行抽样测量,并将音量值显示在交互式地图中。
WideNoise is an iPhone application that samples decibel noise levels, displaying them on an interactive map.
沥青混合料沥青含量抽样检测的样本检测值服从正态分布。
The inspecting value of sample for asphalt content sampling of asphalt mix is normal distribution.
采用典型抽样方法,对长白山北坡不同海拔高度带云冷杉林的植物种类组成及重要值进行了初步研究。
Using typical sampling method, the paper studies the composition and important value of plant species in subalpine spruce fir forest on Northern Slope of Changbai Mts.
特异值问题可能存在于许多抽样调查之中,特异值在地质勘探及采矿工程中称为特高品位,它一般对应于高品位的矿化作用。
Outliers problems may be present in sampling surveys. Outliers, called extreme high grade data in geological prospecting and mining engineering, usually correspond to very high grade mineralization.
本文提出了基于基因型值构建作物种质资源核心库的抽样方法。
A method for sampling core collection from crop germplasm was proposed.
本文讨论了贝塔分布共轭于二项分布的决策模型下的二行动线性决策问题的抽样信息期望值的计算公式。
In this paper we discuss the counting formula of the expected value of sampling information for linear decision problem on two actions under the Be - b model.
影响偏离的主要因素为时段洪量设计值的抽样误差和典型过程线的形状。
The main factor which may have a strong impact on such a deviation is the sample errors of certain flood volumes in a flood hydrograph.
计算机模拟结果表明,经200 ~ 300次迭代运算后,系统冲激响应抽样估计值误差小于0.01。
The computer simulation results have shown that the estimation error of the system impulse response samples are smaller than 0.01 after the 200-300-iteration operation.
该抽样方案包含一系列表格,告诉使用者对给定的批量如何采用样本量和与不同的AQL值相应的接收数(口)。
The plan consists of a series of tables, that tell a user the sample size to employ for a given lot size and the corresponding acceptance number (a) for various AQLs.
该方法通过对前一轮提升后权值较小的那部分样本作标记,增加了后一轮提升抽样的有效容量,从而使算法中的分类器能够更快速地关注那些很难分类的样本。
The former's effective capacity of sample has been improved by the new algorithm, which is made on the former samples with less weights. Thus, the classification algorithm...
当抽取样本多于此值后, 曲线下降缓慢。3)落叶松人工林的样地抽样效果要好于柞树林的样地。
Their fluctuation degrees were also decreasing as the number of sampling points was increasing. 3) This technique used in Larix plantations was better than Mongolian oak forest.
证明了在期望值决策准则下,用等概率分层随机抽样得到的方案收益期望值的均值,与用简单随机抽样得到的相同。
It is verified that th action's mean value of the expected value by simple radom sampling is equal to one by stratified radom sampling.
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;
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;
根据这些性能参数的统计分布,通过随机抽样,得到了它们的模拟样本值,进而计算出压力值。
According to the distribution functions of the characteristic parameters, random sampling are used to compute the simulation value of the pressure. Simulation result...
抽样分布样本效果大小的平均值可以作为总体效果大小的估计值 ,它与样本容量和抽样样本数目有密切关系 ;
The simulated experimental results showed that significance t testing is highly related to population distribution effect size and sample capacities, yet rarely related to the numbers of rand…
抽样分布样本效果大小的平均值可以作为总体效果大小的估计值 ,它与样本容量和抽样样本数目有密切关系 ;
The simulated experimental results showed that significance t testing is highly related to population distribution effect size and sample capacities, yet rarely related to the numbers of rand…
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