查询词典 correlation analysis

Methods We used correlation analysis to precondition the data to reject indexes, and used stepwise discriminatory analysis to choose indexes and made the diagnosis by multiple linear discrimination analysis.

方法用相关分析做数据预处理剔除指标，再用逐步判别分析(stepwise discriminant analysis，SDA)选入指标，并用多元线性判别分析诊断，最后随机抽样比较剔除指标前后的诊断效果。

To analyze the clinical characteristics of AS on Chinese and Western medicine,measurement data were carried out with descriptive frequency analysis and t test,enumeration data were analyzed with chi-square test,the study of TCM patterns were carried out with Pearson correlation analysis,and cluster analysis,etc.

采用Access软件建立与课题相关的数据库进行数据管理，统计分析在统计软件平台进行，计量资料进行描述性频数分析和t检验，计数资料采用卡方检验，证候学研究采用Pearson相关分析、聚类分析等。

Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.

本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施，在此基础上，结合SC7080A和SC6350B汽车的车外加速噪声水平及现状，综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法，对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案，针对SC7080A，主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器，抑制空气滤清器壳体表面和进气口两处的噪声辐射，根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器，并进行了工程化设计和试制；针对SC6360B，主要改善了排气消声器在高频段的消声性能，对罩壳类零件进行了结构改进，降低了其表面噪声的辐射，并对发动机舱进行了吸声、隔声处理，设计了发动机隔声罩。

Based on some correlative the theory analysis and conclusion of experiment about impedance muffler, some issues about the foundation of model of leak pipeline are tried instructively and analysis reasonably by the acoustical analysis and the characteristic of acoustical spread in the leak pipeline is studied. The leak detection is a little more wonderful technology which can find the leak and then locate it accurately in virtue of correlation leak detection.

本文综合了有关文献的理论分析和试验结果，从声学的角度对供水管道漏损的声学模型的建立进行了有益的尝试和合理的分析，并对漏损管道内的流体声传播特性进行了研究。

In data analysis, some traditional statistical methods, such as one-way analysis of variance, LSD, correlation analysis, were used.

在数据处理上，采用了描述性统计、单因素方差分析、多重比较检验和相关分析等研究方法。

Tests on mean vector, discriminant analysis, multivariate analysis of variance, canonical correlation, principal components, and factor analysis.

多元分析——方法：均值向量检验，判别分析，多元方差分析，典型相关分析，聚类分析，主成分分析，因子分析。

Data were collected from 520 college students from Central China Normal University. Correlation analysis, variance analysis and regression analysis were applied to explore the states of the time management disposition, stressor and objective well-being.

选取华中师范大学520名大学生为被试进行测查，将获得的各项数据进行相关分析、方差分析和多元回归分析，探查了大学生的时间管理倾向、压力与主观幸福感的现状以及它们之间的关系，结果发现： 1。

Outline of the course include: Introduction ; Data processing and analysis ; Descriptive statistics ; Statistical inference ; Analysis of variance ; Correlation of variable ; Non parametric statistics analysis.

本课程的主要内容包含：绪论、资料整理与分析、描述统计、推论统计、平均数的差异、变数间的关系、无母数统计分析。

Finance ; stock market ; correlation analysis ; factor analysis ; principal analysis

金融；股市；相关分析；因子分析；主成分分析

In the thesis the theory of time series analysis, several models about time series analysis and the dynamic feature of time series analysis are expatiated in detail; how to use autocorrelation function and partial correlation function to judge the model is analyzed; a kind of better rule to determined rank is determined by comparing several kinds of determined rank; thereby the reverse function can be used to forecast.

本文详细阐明了时间序列的基本思想、几种常见的时间序列模型以及时间序列的动态特征；分析如何利用自相关函数和偏相关函数来对模型进行判定；通过对时间序列的几种定阶准则的比较，确定出一种较好的定阶准则来建立模型，从而利用逆函数法进行预报。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。