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- principal components anslysis 主成分分析
- Subject the matrix to principal components analysis. 主成分分析法。
- Principal Components: Aluminum Tripolyphosphate and modifiers. 主要成分:三聚磷酸铝及其改性物质。
- Keywords: design hyetograph, principal components analysis, cluster analysis. 关键词:设计雨型、主成分分析、群集分析。
- All three principal components of this definition are of great importance. 这一定义的三个主要构成部分,都极为重要。
- Any alloy whose principal component is copper. 主要成分是铜的合金。
- Slang had been a principal component of his rattling. 他唠叨的主要是一些假语村言。
- The method involves principal components analysis, phase space reconstruction and least squares estimate. 方法包括3部分:主分量分析,相空间重构,最小二乘拟合。
- Statistical Process Control (SPC),Principal Compon ent Analysis (PCA) and Singular Value Decomposition (SVD) are introduced to det ermine APC opportunity and then APC structure. 这一研究对于开发和应用好先进控制技术具有重要的意义。
- RPS is the principal component of rchmannia glutnosa. 地黄多糖是地黄的主要组分。
- Results:When there are less principal components,CPCR is better than top-down PCR. 结果:当所含主成分数较小时,CPCR法优于传统的主成分回归。
- S: 1 MEG demonstrated high redundancy in the original signal set. Most of the signal energy could be compressed in the first 30 principal components. 脑磁图信号有较高的冗余度,信号能量的绝大部分集中在前30个主成分中,从前30个主成分中抽取干扰源和诱发响应活动源。
- Source rock, migration chanel and capping layer are three principal components controlling deep gas reservoirs in the subject area. 该区深层天然气藏主要受气源岩、运移通道和盖层三个基本条件控制 ;
- Methods:To introduce the correlation principal components regression(CPCR) and compare the difference between the CPCR and top-down PCR. 方法:介绍相关主成分回归CPCR法并将该法与传统的主成分回归进行比较。
- The data among the orthonormal matrix denote the proportion of every original characteristic in the principal components. 通过正交变换阵中各系数的大小,研究了各原始特征分量在各主分量特征中所占的比例。
- The GGE data is then subjected to singular value decomposition and is approximated by the first two principal components. 对GGE作单值分解,并以第一和第二主成分近似之。
- Using conven-tional change detection techniques such as image differencing or principal components analysis helped to high-light salient changes. 要分析规划区内的环境,可利用区内的植被指数均值。
- This paper explores the effect of integration of trade and investment on the R&D investments by panel data model and principal components analysis. 本文利用面板数据模型,结合主成分分析法,研究了中国贸易投资一体化对研发投入的影响。
- SPCA arithmetic has smaller number of spectral principal components and greater variance contribution than PCA by choosing proper kernel functions and parameters. 当选取合适的核函数和参数时,谱主成分的个数比主成分的个数要小且累积方差贡献率要大。
- Inaddition,analysis for principal components and calculation for genetic correlation infor-mation(GCI)and genetic correlation contribution(GCC)were also performed,too. 本文还进行了遗传相关信息与遗传相关贡献的估算,以及主成分等分析。