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统计函数     
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  statistical function
     Application of Excel Statistical Function in Data Analysis
     Excel统计函数在数据分析方面的应用技巧
短句来源
     In this paper we find that power average is a special example of statistical function E(|Z|)~r~(1r)by constructive method.
     利用构造法可给出这种关系的证明及推广,指出幂平均数是统计函数E(|Z|)r1r的特例。
短句来源
     OBJECTIVE:To conduct X2 test using excel statistical function.
     目的:探索利用Excel软件统计函数进行X2检验。
短句来源
     RESULTS & CONCLUSION:X2 test was able to be performed using Excel statistical function. X2 valne was available once the format is fixed and the numerical values in worksheet are replaced.
     结果与结论:利用Excel软件统计函数可实现格式化X2检验,且一旦格式固定,只要替换其中数值,就可立即得到X2值。
短句来源
     A statistical function (i.e.the variational function),the maximum point of which includes the information of the reflective coefficient sequence,is obtained by using the Kullback-Liebler information measure,and the algorithm is devised for computing the maximum value of the variational function.
     利用Kullback-Liebler信息测度获得一个非常有用的统计函数(即变分函数),此函数的极值点就含有所要求的反射系数序列的信息,并且拟订出求此泛数极值点的一套算法.
短句来源
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  statistics function
     Probability Counting with Statistics Function of Excel
     利用Excel的统计函数进行概率运算
短句来源
     In chapter four, the author has cited a conclusion that senility of the elderly could cause some changes on body dimensions, and used main statistics function knowledge in human measurement, and revised adult's human physical dimension in chapter two, finally got some human dimension of approximate for old people.
     第四章中根据老年医学资料中关于老年人因身体衰老而引起的人体尺寸的变化结论,利用人体测量中的主要统计函数知识,提出了推算老年人人体尺寸的方法,利用这一方法对第二章获得的成年人人体尺寸数据进行修正,推出近似的老年人人体尺寸数据,为研究和设计老年人室内卫生间提供人体参数依据。
短句来源
     Taken statistical common target, parameter estimating , hypothesis testing and regression analysis as experiment objects, based on the excel 2002 statistics function ,a kind of data process system called combination technique , which can deal with data rapidly was put forward by the author.
     以统计常用指标、参数估计与假设检验、回归分析作为实验对象,利用excel2002的统计函数进行了组合设计,整合出适合个人偏好的数据分析工作簿,从而能快速的分析数据。
短句来源
     The application of statistics function of EXCEL may simplify complicated binomial distribution probability counting and normal distribution probability counting,and at the sme time,many statistics functions can be connected together with some counting signs to make statistics analysis process which can be applied to much more complicated statistics counting and analysis.
     利用EXCEL的统计函数可以使复杂的二项分布概率计算和正态分布概率计算变得简单,同时,可以利用计算符号把多个统计函数连接起来,制成统计分析程序,用于比较大的复杂的统计计算和分析.
短句来源
     Xuzhou Medical Collage developed a set of test result analysis software. It uses Visual Basic for Application(VBA)and statistics function in database Excel2000.It is simple to use and powerful in function.
     徐州医学院组织开发的试卷分析软件使用Excel2000为数据库,使用统计函数为工具,应用V BA语言开发而成。
短句来源
  statistical functions
     Taking auriferous samples and 1∶50 000 geochemistry exploration samples as examples,using Excel insert POWER function,statistical functions (COUN,AVERAGE,STDEV) and the relative calculated formulas to calculate the permissive relative difference between two results, analysis of rock and mineral different between two results, and the degree of accuracy and the precision.
     以金矿样品分析、1∶5万化探样品分析为例,在Excel中插入幂函数(POWER)、统计函数(COUN,AVERAGE,STDEV)及相关计算公式,计算岩矿分析允许相对双差,样品测定双差,化探分析准确度、精密度。
短句来源
     The statistician Paul Janseen and others introduced a general class of statistical functions and obtained its asymptotic normality by using G a^ teaux differential and results in U statistic .
     统计学家 Paul Janseen等人于 1984年引入了一般统计函数类 ,巧妙地运用 Ga^ teaux微分及 U统计量的一些结果得到了一般统计函数类的渐近正态性质 .
短句来源
     METHODS:Formatted worksheet was set up and the X2 test was performed using excel statistical functions that consists of CHITEST,CHIINV AND CHID_IST.
     方法:建立格式化的电子表格,利用Excel软件统计函数CHITEST、CHIINV、CHIDIST进行X2检验运算。
短句来源
     Based on their work , a general class of statistical functions under independent multi samples is introduced and the asymptotic normality of the corresponding estimation is established by using Generalized U statistic and G a^ teaux differential .
     本文在他们工作的基础上进行了推广 ,引入了多组样本条件下的一般统计函数类 ,并利用 Generalized- U统计量的性质及 Ga^ teaux微分得到了多组独立样本下一般统计函数类的渐近正态性质 .
短句来源
     Lastly, to avoid heavy and boring low-level analysis and debug work, we propose to use Matlab to simulate soccer server, which have advantage of use it's many tool boxes and many math functions such as statistical functions.
     最后为了避免重复的繁重的调试分析劳动,提出了用Matlab来对Soccer Server作仿真,利用Matlab的各种工具箱和统计函数来加速对新思想和新算法的研究应用。
短句来源
更多       
  statistic function
     Experiment on Computer of Probability Distribution by the Excel Statistic Function
     利用Excel的统计函数进行概率分布计算机实验
短句来源
     CRH is a statistic function of homogeneous gray connected-region (CR), revealing the probability distribution of CRs. CRH can roughly represent the image content.
     连通直方图是图像中连通区域面积的统计函数,反应了图像中连通区域的概率分布,是图像内容的一种简洁表达。
短句来源
     A new approach of computer experimental probability distribution is gained by using the nomal distribution,binomial distribution and possion distribution of the Excel' s electronic table statistic function. In order to comprehend the correlation character of frequenthy probability,this paper analyzes and experiments the example.
     Excel电子表格统计函数中的二项分布、泊松分布、正态分布使用,为概率分布计算机实验提供新的途径,通过实例的分析和实验,理解常见概率分布的相关性质。
短句来源

 

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      statistical function
    The results show a more accurate expected value with respect to the traditional statistical function estimation approach.
          
    The logarithm of the high dimensional integral is reduced to a 1-dimensional integration of a certain statistical function with respect to a scale parameter over the range of the unit interval.
          
    The shape of relaxation of both the shear stress and the first normal stress difference could be closely approximated for the entire measured shear rate and time range by a two parameter statistical function.
          
    Progressive interfacial fiber debonding and a crack-weakened model are considered in accordance with a statistical function to describe the varying probability of damage.
          
    A parameter which may be represented as a functionalT(F) of a distribution functionF may be estimated by the "statistical function"T(Fn), whereFn is the empirical distribution function.
          
    更多          
      statistical dependence
    Automated selection and estimation algorithms are used, including nonparametric criteria for the statistical dependence of samples uniform in time.
          
    Using mean-preserving transformations, we derive the optimal budget allocation among individual activities for separable and non-separable cost functions, and also explore the implications of statistical dependence on the allocation.
          
    This statistical dependence of the produced secondaries is achieved by introducing the many-secondary-particle correlation amplitudes into the differential equation with respect to the coupling constant for theS-matrix.
          
    (1972) and shows that the statistical dependence between successive tests can be overcome in some cases.
          
    Statistical dependence between neighboring retinal ganglion cells in goldfish
          
    更多          
      statistics function
    With the Expanded Statistics function it is possible to determine the error rates as the number of transmitted or faulty bus mes sage frames.
          
      statistical functions
    Geographic Information System (GIS) can provide an exploratory spatio-temporal data analysis environment with its capability of spatio-temproal data query, logical and arithmetical operations, visualization, and the integrated statistical functions.
          
    The ratios MLR/MET and MET/MDR are highly sensitive, and can be expressed as statistical functions of metal concentration and exposure time.
          
    We introduce a first-order language with real polynomial arithmetic and aggregation operators (count, iterated sum and multiply), which is well suited for the definition of aggregate queries involving complex statistical functions.
          
    OnLp-convergence rates for statistical functions with application toL-estimates
          
    It is indicated that texture statistical functions and parameters are the most effective for relative discrimination and control.
          
    更多          
      其他


    In this paper the method of the digital statistic functions was employed to analyze quantitatively the rotor velocity wakes. The relations between the flow conditions of the blade elements and the rotor wakes were established. The frequencies and intensities of the disturbing sources were analyzed quatitatively with the power spectrum. The value of Rx(0) at τ=0, i.e. the total power including the blade passing frequency and the noise and losses under the unsteady flow of the rotor, could be obtained from the...

    In this paper the method of the digital statistic functions was employed to analyze quantitatively the rotor velocity wakes. The relations between the flow conditions of the blade elements and the rotor wakes were established. The frequencies and intensities of the disturbing sources were analyzed quatitatively with the power spectrum. The value of Rx(0) at τ=0, i.e. the total power including the blade passing frequency and the noise and losses under the unsteady flow of the rotor, could be obtained from the autocor-relogram. The analytical results indicated that the peak efficiency point of the compressor was at the highest amplitude of the blade passing frequency and the minimum total power of wakes. The variations of the total power of the wakes showed the initiation and development of the unsteady operating conditions of the elements. It could be used to determine the elements which stall occurred first. The losses of the rotating cascade determined by the parameters of rotor wakes and the turbulence levels could be used in the design modification.

    本文讨论如何用数字统计函数定量地研究转子速度尾迹,建立转子基元级工作状况与尾迹的关系,通过功谱图可以定量地分析出干扰源的频率及其强度;从相关图上可以得到τ=0时的相关值R_x(0),即尾迹的总功率,它包括叶片通过频率和全部非稳定工作引起的噪音与损失。叶片通过频率幅值最大、尾迹总功率最小的状态是压气机最佳工作状态,各基元级非稳定工作状态的发生和发展反映在尾迹总功率变化规律上,可以用它确定最先发生失速的基元。由转子尾迹特征参数和紊流度可以求出旋转叶栅损失,为修改设计提供参考依据。

    In this paper, track irregularities, which are referred to as "track randomexcitation functions", are described in respect of their effects, interpretation,measurement, evaluation and control. This paper also deals with the characteri-stics of waveforms, power spectrum density and autocorrelation obtained fromactual measurement of track irregularities. The following points are mentioned: (1) Due attention must be given to, besides the amplitude, the effects of wavelength, ratc of change and resonantwaveform...

    In this paper, track irregularities, which are referred to as "track randomexcitation functions", are described in respect of their effects, interpretation,measurement, evaluation and control. This paper also deals with the characteri-stics of waveforms, power spectrum density and autocorrelation obtained fromactual measurement of track irregularities. The following points are mentioned: (1) Due attention must be given to, besides the amplitude, the effects of wavelength, ratc of change and resonantwaveform of the track irregularities; (2) The wavelengths to be measured forprofile irregularities in China at present should be from 0.1--30m; (3) Trackrandom excitation functions appearing to be highly irregular possess some sortof statistical characteristics and certain statistical patterns" (4) It is of impo-rtancc of using statistical functions such as the mean square value and PSDetc., to interpret the characteristics of track irregularities in respect of rese-arch on wheel/rail interactions and scientific evaluation the quality of trackmaintenance; (5) The measured data show that sample values of track randomexcitation functions are not necessarily stationary all the time; (6) Theaccuracy of the measured results relies greatly on the measurement techniquesadopted; (7) Graphical analysis and tests have further unveiled the defects byusing the "chord offset method", which has been used for a long time in Chinaand other countries, while the inertia technique, on the other hand, providesdata which conform closely to the actual waveforms. The author recommends that it is essential to improve and perfect the tech-niques for the evaluation and control of track irregularities by way of evalua-ting the smoothness of the track using "mean square value", or avariance", and"PSD" for determination of the sections of track to be enlisted in the periodicalmaintenance plan; of evaluating the regional characteristics of track irregul-arities by the three parameters of peak amplitude, mean rate of change andresonant waveforms for determination of the specific places requiring urgerltrepair or spot maintenance.

    本文将轨道不平顺称为“轨道随机干扰函数”。论述轨道不平顺的种类、影响、描述、测量、评价与管理,以及部分测得的轨道不平顺波形、功率谱密度、自相关的特性。文中指出:不应只注意轨道不平顺的幅值,还必须重视波长、变化率、谐振波形等的影响;目前我国需测量考查的高低不平顺波长范围应为0.1米至30米;表面上杂乱无章的轨道随机干扰函数都具有某些统计特征和统计规律性;用均方值、功率谱密度等统计函数来描述轨道不平顺的特征,对轮轨相互作用和科学评价轨道养护状态的研究有重要意义;实测资料表明轨道随机干扰函数的样本记录并非都是平稳的;测量轨道不平顺的方法对测得结果的真实性有很大影响;图示分析和试验考查进一步揭示我国及许多国家长期使用的“弦测法”有严重缺陷,“惯性基准法”测得的结果与实际波形较为符合。作者建议改进评价、管理轨道不平顺的办法,用“均方值”或“标准差”、“功率谱密度”来评价轨道的平顺状态,确定应列入计划维修的里程段落;用峰值、平均变化率、谐振波形等三个参数来评价轨道不平顺的局部特征,确定需要局部维修或紧急补修的地点。

    In this paper different respects in the evaluation of surface texture are systematically described. It is illustrated by examples to show the influences of surface topography on friction, wear, lubrication, the load capacity of rubbing pairs and the anti-gluing capacity.The problems existing in National Standard for evaluating surface texture are pointed out.Finally three statistical functions( i .e. the centre-line average, the probability distribution function and auto-correlation function), that can completely...

    In this paper different respects in the evaluation of surface texture are systematically described. It is illustrated by examples to show the influences of surface topography on friction, wear, lubrication, the load capacity of rubbing pairs and the anti-gluing capacity.The problems existing in National Standard for evaluating surface texture are pointed out.Finally three statistical functions( i .e. the centre-line average, the probability distribution function and auto-correlation function), that can completely express the texture characteristic, are given as indexes of evaluating surface texture.

    本文系统地阐述了表面纹路评定的各个方面,举例说明了表面纹路对摩擦、摩损和润滑作用以及对摩擦副承载能力,抗胶合能力的影响,指出了目前评定表面纹路国家标准所存在的问题,提出了能全面反映纹路特征的三个统计函数作为评定指标,即表面轮廓的中线平均值,概率分布函数和自相关函数。

     
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