平均差

NMath Stats contains a data table class with functions for computing descriptive statistics, such as mean, variance, standard deviation, percentile, median, quartiles, geometric mean, harmonic mean, RMS, kurtosis, skewness, and many more; PDF, CDF, inverse CDF, and random variable moments for a variety of probability distributions, including normal, Poisson, chi-square, gamma, beta, Student's t, F, binomial, and negative binomial; Combinatorial functions, such as factorial, log factorial, binomial coefficient, and log binomial; Multiple linear regression; Basic hypothesis tests, such as z-test, t-test, and F-test, with calculation of p-values, critical values, and confidence intervals; One-way and two-way analysis of variance and analysis of variance with repeated measures; Multivariate statistical analyses, including principal component analysis and hierarchical cluster analysis.

nmath统计包含一个数据表的阶层与职能计算描述性统计，如平均，方差，标准差，百分位，中位数， 25 ％，几何平均数，调和的意思是，有效值，峭度，偏度，还有更多的； PDF格式，民防部队，逆民防部队，并随机变量矩的各种概率分布，包括正常，泊松，卡方检定，伽玛，测试版，学生的吨，男，二项式，并负二项分布；组合的功能，例如阶乘，日志阶乘，二项式系数，并登入二项式；多元线性回归；基本假设测试，如的Z测试， t检验， F检验，计算p值，临界值，和置信区间；之一，双向和双方法方差分析和方差分析与反复的措施；多元统计分析，包括主成分分析和聚类分析。

The best of comprehensive efficiency between natural lighting and heat insulation is Low-E glass, the best performance of natural lighting is clear glass, but performance of heat insulation is bad, the best performance of heat insulation is green semi-reflective glass, average daylight factor is about 1% over, 0.7% of residential standards, but its illuminance is not suitable about 200 Lux.

平均昼光率与室内玻璃表面温度标准差之比值的综合效能评估中，Low-E玻璃为采光与隔热综合效能最优异之材质，而清玻璃为采光效能最优异之玻璃材质，但清玻璃隔热效能不佳，绿色半反射玻璃的隔热效果最好，而采光方面的昼光率平均为1%，采光虽然还符合住宅的昼光率标准0.7%，但照度普遍不佳，平均室内照度约200 照度。

We gain the distributing instance as a whole by the spatial analyse of the daily、 mensal and annual precipitation.Then, we adopt mean error、 mean absolute error、 mean relative error、 and the root mean squared interpolation error and the correlative coefficient as the determinant standard of interpolation effect. The results show that the mensal precipitation effect of SIA is the best, and the daily precipitation effect is worse reversely.

然后，对年降水量、月降水量以及日降水量的SIA结果采用平均误差、平均绝对误差、平均相对误差、插值平均误差平方和的平方根误差以及相关系数作为判定插值效果的标准，并得到以下结果：月降水量的SIA效果最好，日降水的相对较差。

The normal and curvature are significant geometry information for 3D point clouds.

差分坐标以其相关之拉普拉斯运算子在三维数位几何模型上已有许多的研究及应用，顶点的差分坐标计算是由顶点与拓扑上之相邻点的相对位置关系所求得，因此顶点之差分坐标代表了区域曲面起伏变化情况，差分坐标其方向会近似於区域法线方向而其长度会近似予区域平均曲率，此两项资讯为点云资料重要几何资讯。

With the consideration of the spatial variation of physical parameters of soft clay, the probabilistic characteristics of the one-dimensional average degree of consolidation of soft clay was studied and its sensitivity of variance to permeability, void ratio and compression coefficient of soil was also analyzed.

在考虑岩土参数空间变异性的情况下，对软粘土地基一维固结平均固结度的概率特征进行了研究，分析了平均固结度的概率特征对渗透系数、孔隙比和压缩系数三参数变异性的敏感性，进行了岩土参数分布类型对平均固结度影响的正交试验，并根据试验结果进行了方差分析，为进一步开展多层地基固结的可靠性分析打下了基础。

All the analysis was done using SAS EM 4.1 software. The prevalence of tracheobronchitis were higher in spring and autumn. Average atmospheric pressure, average temperature, highest air temperature, lowest air temperature, water-vapour pressure, degradation of visibility were positively correlated with the prevalence of tracheobronchitis. Factors that affected the incidence of tracheobronchitis were average atmospheric pressure, degradation of visibility, daily temperature difference and water-vapour pressure.

结果］湖州市气管支气管炎门诊人数存在明显的季节分布差异，夏季和冬季是此类疾病的2个高发季节，而春季和秋季门诊人数较少；其门诊人数与平均气压、平均气温、最高气温、最低气温、水汽压、大气能见度等气象条件存在较好相关性；影响气管支气管炎门诊人数的主要气象因子有平均气压、能见度、日较差和水汽压，当平均气压≥1020.33hPa且能见度＜6.2km时，气管支气管炎门诊人数最高。

It is theoretically demonstrated that the influences of terrain height and orographic heterogeneity are important on the flux of surface long wave radiation over a large scale grid area.

摘要从理论和数值试验两个方面证明地形的非均匀性对网格区地面长波辐射通量的计算有重要影响，海拔高度场的区域平均值及其变差系数是影响网格区地面长波辐射通量的主要因素，仅仅用地表均匀假定下的区域平均参量（如平均海拔高度和平均温度）所计算的网格区地表有效辐射通量值与其真实值之间存在着一定的误差。

The results showed that among the sixteen Alines,the average restoring degree of Yumai 3,Yunong 93221,Yunong 93151 and Luozhen 1 were more than 70% and were divided the sterile lines easy to be restored.Yujiao1,Yunong 93019,S33,Yunong 92369,Yunong 92368 and Yunong 92382 were in the middle for ERF,and their average restoring degrees were between 60% and 70%.MS43,S34,Yumai21,S43,Ai82056 and Yunong 212M2 were difficult to be restored,and their average restoring degrees were under 60%.

结果表明，在16个不育系中，豫麦3号、豫农93019、豫农93151和漯珍1号的平均恢复度都在70%以上，为易恢性好的类型；豫教1号、豫农93221、S33、豫农92369、豫农92368和豫农92382的平均恢复度在60%70%，为易恢性中等的类型；MS43、S34、豫麦21号、S43、矮82056和豫农212M2的平均恢复度在60%以下，为易恢性差的类型。

Specific for, the service level of Hotel3 is best, its are average the service level that serve time is 3 minutes of;hotel2 about only next, its are average the service standard that serve time is 8.7 minutes of;hotel1 about is the wrongest, its are average serve time is 14 minutes about unexpectedly.

具体来说，hotel3的服务水平最好，其平均服务时间仅约为3.0分钟；hotel2的服务水平其次，其平均服务时间约为8.7分钟；hotel1的服务水平最差，其平均服务时间竟约为14.0分钟。

On the basis of many times of experiments, A optimized reaction system about the microsatellite PCR amplification and partial COⅠ-Ⅱgene amplification of the green peach aphid was proposed. 3. It is clear that the result of polymorphic bands shows the abundance among the aphids after different UV radiation with three primers.

遗传多样性指标的方差分析结果表明，对于平均多态位点率，2 h处理是平均多态位点率的临界值，超过2 h， F2代平均多态位点率发生显著变异；对于平均基因多样度，对照与不同时间处理间差异显著；研究结果也表明低剂量紫外照射可增加蚜虫的免疫性，高剂量辐射则导致桃蚜的基因发生变异。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。