变量
- 与 变量 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Firstly, single factor analysis, including Independent-sample T Test for scale variables, Chi-square Test for binomial and nominal variables, Nonparametric Test for ordinal variables, was used in 60 clinical variables.
先将所调查的60个临床指标进行单因素分析,连续型变量采用独立样本t检验(Independent-Sample t Test),二分类变量和无序变量采用卡方检验(Chi-squareTest),有序变量采用非参数检验(Nonparametric Test,NPar)。
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Consider the dependencies between the coefficients and their parents, a non-Gaussian bivariate distribution is given, and corresponding nonlinear threshold function is derived from the model using Bayesian estimation theory. According to non-subsampled Contourlet transform and bivariate threshold function, a novel Non-Subsampled Contourlet Transform based on Bivariate threshold function for image denoising is proposed. This scheme achieves enhanced estimation results for images that are corrupted with additive Gaussian noise over a wide range of noise variance.
该文依据非下采样Contourlet分解系数与其父系数之间的相关性,给出非高斯双变量分布,对该模型应用Bayes估值理论推导得到相应的非线性双变量阈值函数,综合非下采样Contourlet分解和双变量阈值函数,提出一种基于双变量阈值的非下采样Contourlet变换图像去噪方法。
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Experimental results indicated that the first canonical correlation coefficient and the second canonical correlation coefficient was 0.8451 and 0.7843 respectively, they have constituted 91.37% of the total correlation. The first canonical variable (V1) of the response signals group had certain predicted ability on physicochemical index of milk, but the predicted ability was a little weak, response signals of ZZ sensor(X1)、CA sensor(X4) and JB sensor(X7) played a crucial role .At the same time, four canonical variable V and W have explained 42.49% and 43.25% of the total variances of the other group respectively.
试验结果表明:第一典型相关系数和第二典型相关系数分别是0.8451 和 0.7843,前两对典型变量共占总相关的91.37%;响应信号组的第一典型变量(V1)对牛奶理化指标具有一定的预测能力,但预测能力较弱,起主要作用的是ZZ传感器响应信号(X1)、CA传感器响应信号(X4)和JB传感器响应信号(X7);与此同时,V和 W 的四个典型变量分别解释另一组变量总方差的42.49%和43.25%。
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The theory of reciprocal screws is used to determine the independent controllable variables in the Cartesian space, and the mapping between the controllable velocity components in t...
文章用反螺旋理论通过建立独立运动变量和关节变量的运动模型,使机器人末端可控变量与关节变量成一一对应关系。
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Recently many of statisticians have been interested in the functional coefficient model because of its simplifying structure, meaningful interpretation and wide application. In the chapter 2, estimators of parameters of linear functional coefficient structural model under interval-censored covariate studied.
由于协变量区间删失,为此我们创立了一个与协变量具有相同均值的变量,然后利用加权最小二乘估计法得到了变系数一维线性结构关系模型中的参数估计,当协变量的分布已知时,证明了估计的弱相合性和强相合性。
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The null hypothesis is that the efficient estimator is a consistent and efficient estimator of the true parameters.
2, 如果上述理论逻辑通的话,将内生变量 X 作为解释变量, IV 和其他变量( X2)作为解释变量,看 IV 是否显著,它应该显著。
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The main results are as follows:We review the existing Monte Carlo control variates estimators of the price of Asian options and propose a new one. According to pratical needs, we define efficiency as the inverse of the product of the variance of an estimator and its computational time and make it a standard for comparisons to draw the following conclusions: Firstly, the more control variates correlate with arithmetic average Asian options, the larger is the efficiency of an estimator with these control variates, but among which the geometric average option plays the most important role; Secondly, an estimator with more control variates is better than one with less ones only when the time to maturity is long and the volatility is high.
在综合已有研究工作的基础上,本论文的主要创新成果如下:(1)我们回顾了已有的亚洲期权价格的蒙特卡罗控制变量估计,并提出了一个新的控制变量估计,且从客观实际出发,将估计值的方差和计算时间的乘积的倒数定义为效率并以它为标准比较各估计,得到以下结论:与算术平均亚洲期权相关程度越大的控制变量构成的估计的效率越大,而其中起主要作用的控制变量为几何平均亚洲期权的价格;只有在到期时间较长且标的资产的波动率较大时,元素多的多元控制变量估计比元素少的效率大。
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Fri particular, the Wittmann-type strong law of larg numbers for independent random variables is generalized to the case of NA random variables. We also present the sufficient and necessary condition of the laws of logarithm, and we extend Teicher-type strong law of the large numbers for sequence of NA random variables. Some of the laws of iterated logarithm of Teicher-type, Egorov-type arid Wittmann-type for sequence of NA random variables are obtained. Then we investigate the rate3f ionvergcll( fbr series of NA randonl variables, we obtain soIne results fbr tl1e Iaws of theiterated logarithttl, the laws of logarithm and decreasing order fOr the tail sum.Risk itllttlysis tlleory is a sigIlifica11t part of insurance InatheInatics.
Wittmann(1985a)关于实独立随机变量列的结果,并给出了NA列强大数律成立的若干条件,特别建立了一般NA列对数律成立的充分必要条件,在二阶矩存在的条件下完整的解决了一般NA列对数律的问题,中文摘要2而已有的一些NA列对数律的结果可以由它推出,给出了NA列的Teiclier型强大数律,表明lbiChCI·(1979)给出的实独立随机变量列的强大数律可以减弱其条件等;建立厂不问分布NA列的Teicfl仪;Egorov,Petrov型有界重对数律,以及加权同分布NA列的有界重对数律,进一步推广了NA列的Kolmogory有界重对数律等,特别对NA列建立了Wittm洲型有界重对数律,而其证明方法与独立情形有很大不同,同时通过反例表明在与独立场合类似的条件下,独立列的Wittmann有界重对数律不能完美的推广到NA歹小惰形;最后研究了NA随机变量级数的收敛速度,给出了尾和下降的阶;尾和的有界重对数律,及尾和对数律成立的充要条件等,并通过反例说明 NA随机变量级数与独立随机变量级数在收敛速度方面存在的差异。
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The results show that the microstructure of the cladding wire by drawing at room temperature is vimineous grain as fibril shape from prime equiaxed grain. The fibril diameter is in inverse proportion to deformation and the fibril length is in direct proportion to the square of deformation approximately. The ultimate tensile strength of the cladding wire by drawing at room temperature goes up in direct proportion to square root of deformation, whereas the elongation decreases and fluctuates.
结果表明:显微组织自原始的等轴晶变为细长条纤维状,纤维直径与形变量近似地成反比,纤维长度与形变量的平方近似地成正比;经室温拉变形的铜包铝线的极限抗拉强度随形变量增大而增大,与形变量平方根呈直线关系;延伸率随形变量增大逐渐降低,但延伸率波动较大。
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Many other temporaries are used to hold the result of a long-winded bit of code for easy reference later. These kinds of variables should be set only once. That they are set more than once is a sign that they have more than one responsibility within the method. Any variable with more than one responsibility should be replaced with a temp for each responsibility. Using a temp for two different things is very confusing for the reader.
许多其它的临时变量则是暂存一段冗长代码的计算结果以便于后面对其引用,此类的临时变量只应该被赋值一次,如果他们被赋值多次那么说明他们在方法中担负着多种职责,任何担负着多种职责的变量都应该被单职责的临时变量代替,一个临时变量用于不同目的是会把读者搞糊涂的。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。