1) principal component regression
主成分回归法
1.
Simultaneous determination of two components in Annaka injection by principal component regression;
主成分回归法同时测定安钠咖注射液中两组分的含量
2.
Because of the high sensitivity and bad selectivity for CAS- iron(Ⅲ) color system,the principal component regression method for selectively determination of iron(Ⅲ) in the rare earth mixtures is developed and described.
本文基于铬天青S -CTMAB与Fe3 +显色体系中吸收光谱灵敏度高但选择性差的特点 ,应用主成分回归法处理校正样吸光度数据 ,并根据校正样中的Fe3 +浓度向量求算浓度转换向量 ,转换向量求出后就可对任意待测样吸光度向量进行转换从而求出Fe3 +浓度。
3.
Principal component regression is carried out to simultaneously determine every component in the mixtures.
两维pH滴定法同时测定混合极弱酸碱朱仲良,李通化,鲁准军(同济大学化学系,上海,200092)关键词两维pH滴定,极弱酸碱,同时测定,主成分回归法传统的酸碱滴定法必须根据滴定过程中的pH突跃确定等当点,因此当弱酸(或弱碱)的浓度和离解。
2) principal component regression method
主成分回归法
1.
Principal component regression method for selective determination of yttrium in the rare earth mixtures was developed and described.
以DBC 偶氮氯膦为显色剂 ,根据钇 (Y3+)与其它稀土组分的显色络合物吸收光谱差别较大的特点 ,提出应用主成分回归法选择性测定混合稀土中钇的计算光度分析法。
2.
Since the spectra of Cu 2+ ,Co 2+ ,Ni 2+ ,Cr 3+ overlap seriously,it is not easy to determine single element and the principal component regression method for selective determination of Cu 2+ ,Co 2+ ,Ni 2+ ,Cr 3+ in their mixtures was developed and described.
为了探讨不经分离直接测定样品中的单一元素 ,应用主成分回归法处理校正样吸光度数据 ,并根据校正样中的单一已知元素浓度向量求算浓度转换向量 ,转换向量求出后就可对任意待测样吸光度向量进行转换从而求出待求组分的浓度 。
3) principle component regression
主成分回归法
1.
Analysis of correlation among physical properties of PU by principle component regression;
主成分回归法在PU物理性能关系分析中的应用
4) principal component regression
主成分回归
1.
Research on simultaneous determination of monocyclic and polycyclic aromatic hydrocarbons in white oil by principal component regression method;
主成分回归法同时测定白油中单环及多环芳烃含量
2.
Simultaneous determination of calcium and magnesium in food by principal component regression spectrophotometry;
主成分回归-分光光度法同时测定食品中的钙、镁
3.
Simultaneous determination of vitamin B with principal component regression;
主成分回归法同时测定维生素B
5) Principle component regression
主成分回归
1.
In this paper, a new algorithm for multivariate calibration named principle component regression based on wavelet (PCRW) is proposed.
将小波变换与主成分回归相结合,提出一种新型多元校正算法——小波基主成分回归法。
2.
A new method is proposed for the voidage measurement of gas-oil two-phase flow, based on principle component regression (PCR) and partial least squares regression (PLSR), with the capacitances from 12-electrode Electrical Capacitance Tomography (ECT) system.
本文利用12电极ECT系统提供的电容测量信息,基于主成分回归(PCR)和偏最小二乘回归(PLSR)技术,提出了一种油气两相流空隙率测量的新方法。
3.
Ridge regression(RR,principle component regression(PCR) and partial least square regression(PLSR) can all alleviate or eliminate the negative effects of collinearity at some degrees,but all fail in preceding other methods on theories and modeling effects.
结果表明,变量筛选法在处理共线性问题时,会将一些重要的解释变量排除在模型之外,从而削弱了理论的优先地位和导向功能;岭回归、主成分回归和偏最小二乘回归都能够不同程度地减轻或消除自变量共线性的不良影响,但均不能在理论和建模效果上一致地优于其他方法。
6) PCR
主成分回归
1.
With the methods of multi variety linear regression analysis and principal component regression analysis, the result showed that when n=3, two steps derivatived the whole spectrum PCR result close to the actual value ( SEP=0.
采用了多元线性回归分析与主成分回归分析方法 ,结果表明 ,当n =3时 ,二阶导数差谱的全光谱CR检测结果最接近真实值 (SEP=0 。
2.
PCR(principal component regress)that with the characters of reducing dimensions effectively and overcoming the intense relativity between independent variables, is widely used in different fields.
主成分回归以其能够有效的降低维数,克服回归问题中的自变量高度相关而产生的分析困难,而得到广泛的利用。
3.
Then we make use of the principal component regression(PCR) to calculate the comprehensive mark and rating points.
然后通过主成分回归法(PCR)计算出各高校的综合得分及排名,最后利用模糊聚类检验法和灰色关联分析法对结果进行了检验,证明了该评价体系的可靠性。
补充资料:主成分回归分析
分子式:
CAS号:
性质:以主成分为自变量进行的回归分析。是分析多元共线性问题的一种方法。用主成分得到的回归关系不像用原自变量建立的回归关系那样容易解释。
CAS号:
性质:以主成分为自变量进行的回归分析。是分析多元共线性问题的一种方法。用主成分得到的回归关系不像用原自变量建立的回归关系那样容易解释。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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