多元统计

• It is pointed out that fault diagnosis based on multivariate statistical process control has the advantage of no needing of accurately modeling and little effect from the strong correlations among the industrial variables
  指出了基于多元统计过程控制的故障诊断方法具有不需要精确建模、受工业变量间强耦合关系影响小等优点，并概述了其现状及发展趋势。
• In the study , the analysis methods of economics , management and statistic are used . especially , the multi - factor statistic method and theoretic modeling method are applied to analyze the issues in real estate economy
  在研究中，综合运用了大量经济学、管理学、统计学的分析方法，并在运用多元统计方法和理论建模方法分析房地产经济问题上有所创新。
• We use the principal component analysis and cluster analysis to research the agriculture yield of hainan , and represent traditional agriculture yield region and tropical crops yield region and do cluster by these regions
  摘要利用多元统计中的主成分和聚类分析对海南各市县的农业产量进行研究，得出代表海南的传统农业产量区及热带作物产量区，并对上述产量区进行分类。
• In the end , contrast and analysis on most research methods on fault diagnosis are made , in order to figure out issues that deserve more attention and deeper understanding for future research in multivariate statistical analysis
  最后，对于故障诊断领域的各种研究方法作了简单的对比分析，并指出了基于多元统计分析的故障诊断方法的一些值得关注和加以深入研究的方面。
• 3 . the procedure and methods for variables sieving , data sieving , and model sieving were systematically investigated , and a sequential procedure for applying the multivariate regression analysis to our object plant were determined
  ( 3 )用现场采集的数据进行多元统计分析时，系统化地试探了变量筛选、数据筛选，和模型优化等各种方法，确定了适合于所研究装置实际情况的一套统计分析方法步骤。
• Making use of multivariate statistica1 analysis method of mathematical statistics , the ration composite abnormity mode1 is established . we express dispersed geochemical exploration data in image form , and make optimum estimates of unknown values with known values
  本文运用数理统计中的多元统计分析方法，建立定量组合异常模型，将离散型的化探数据表达成图像形式，利用己知值对未知值作出最佳估计。
• Cluster analysis is one of the means of multivate analysis and is widely used in pattern recognition , data mining and decision analysis etc . now the popular clustering algorithm is transitive closure clustering algorithm and fuzzy c means clustering algorithm
  聚类分析是多元统计分析的方法之一，广泛的应用在模式识别，数据挖掘和决策分析等领域。目前常有的聚类算法有传递闭包聚类算法和fuzzyc - mean算法。
• Briefly introduces principal component analysis ( pca ) and its application in fault diagnosis , and brings several computational methods of pca , based on which principal component recursion ( pcr ) and partial least squares ( pls ) . 3
  介绍了基于多元统计分析的故障诊断方法的主要数学工具，包括主元分析( pca ) 、主元回归( pcr )和部分最小二乘( pls ) ，简单分析了它们在故障诊断中的应用特点，为应用打下理论基础。
• The main work could be stated as follows : in chapter 1 , the main contents of fd , the classification of various detection methods and prospects are summarized , especially the history and status about detection methods based on statistical theory
  全文由以下五章组成：第一章为绪论，阐述了故障诊断法研究内容，各种方法的分类及发展趋势，特别是对基于多元统计理论的故障诊断方法的发展和现状进行了完整的综述。