主元

While matching, only the principal component directions corresponding to the rows of the same serial numbers in searching area are needed to be extracted for the computation of projection value so as to form the vectors of projection values. The distances between MM-vectors and the vectors formed by projection values are computed, and whether the two kinds of vectors are matchable should be in accordance to those distances.

在匹配时，只需抽取搜索区域中相同序号的列向相应的主元方向作投影运算，从而构成投影值向量，进而计算该向量与预处理中所得的最大最小值构成向量间的距离，从而根据距离的大小判断是否匹配。

Furthermore, these ICs span the characteristic space of normal operating condition , and the changes of coefficients matrix are monitored which are obtained by projection of process variables onto the space of NOC.

Tennessee Eastman过程的仿真研究表明，该算法是可行的，并与传统的基于主元分析的算法相比，具有更好的监控性能，能够更早地检测出故障的发生。

A data-driven method based on theory of multivariate statistics for fault diagnosis in thermal control systems is thoroughly studied.

本文以多元统计理论为基础，深入研究了主元分析方法在热工控制过程故障诊断的理论与应用。

The authors try to use multivariate statistics method based on principal component analysis to monitor continuous casting mould process.

尝试性地将基于主元分析的多变量统计方法应用于连铸结晶器过程的监测。

The Principal Component Analysis and Partial Least Square Regression methods are applied to batch process monitoring and fault diagnosis, and the two types of multivariate statistics~SPE, Hotelling T2 梐re systematically defined and analyzed.

2将主元分析和偏最小二乘回归分析的方法引入到间歇过程监控和故障诊断中，详细介绍了监控间歇过程的两个统计量SPE、Hotelling T~2。

Report : Programming Environment : Newton MATLAB7 K polynomial interpolation procedures to achieve Romberg of Quadrature program Gaussian out PCA Elimination of the program.

计算方法实验报告：编程环境：MATLAB7.0 牛顿K次插值多项式的程序实现龙贝格求积公式的程序实现高斯列主元消去法的程序实现。

Report : Programming Environment : Newton MATLAB7 K polynomial interpolation procedures ...

计算方法实验报告：编程环境：MATLAB7.0 牛顿K次插值多项式的程序实现龙贝格求积公式的程序实现高斯列主元消去法的程序实现。

The resulting value must be a nonnegative integer less than the number of items in the sequence, and the subscription selects the item whose index is that value.

计算结果必须是一个小于主元中所含项数的非负整数，并且此下标操作选择以该数为索引(从0开始计)的值。

Principal component analysis ; partial least squares ; correlation analysis ; statistical quality control

主元分析；部分最小二乘；相关分析；统计质量控制

Secondary variables selecting method based on PCA is researched, and then secondary variables selecting method based on Partial Least-Squares Regression is proposed.

并且研究了基于主元分析的辅助变量选择方法，提出了基于偏最小二乘回归的辅助变量的选择方法，采用两种方法分别对常压精馏塔航空煤油干点的辅助变量进行了选择比较。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失