
[數] 典型相關
The botany traits, quality traits, yield traits of 39 inbred lines for red-seed watermelon were analyzed by canonical correlation analysis.
以39份紅籽瓜自交系為試材,對其植物學性狀、品質性狀、産量性狀間進行典型相關分析。
Such new variable is tested by pattern recognition for saturated alcohol and ether, combined with block variables' orthogonal computation and canonical correlation ana.
聯合塊變量正交化和典型相關分析方法,以飽和醇醚的模式識别模型對變量進行了驗證。
The canonical correlation analysis was carried on 3 body weight traits and 5 body size traits in two groups from 577 Saba pigs by using SAS.
采用SAS統計分析系統對577頭撒壩豬的3個體重性狀和5個體尺性狀進行了典型相關分析。
The canonical correlation analysis is a better method on measuring the criteria validity.
量表的标準效度的評價,最好用典型相關分析。
Canonical correlation analysis on soil enzyme activities and trace element contents in Eucalyptus plantation soil showed that among the test elements, only Zn and Mn affected enzyme activity.
運用典範相關分析研究了桉樹人工林地土壤酶活性和土壤微量元素含量關系。
This paper presents the result of canonical correlation analysis between leaf characters and yield of 12 paddy rice cultivars measured during the physiological maturing stage.
對12個水稻品種生理成熟期的産量和葉型特征進行典型相關分析,結果表明:産量與葉型特征各性狀的典型相關系數均達顯著或極顯著水平。
Methods The theory of canonical correlation was briefed and the method of canonical correlation was adopted for the example in uniform design.
方法介紹典型相關的原理,并用實例說明實現方法。
Finally, the application of canonical correlation analysis in rape(B. napus)quality breeding is illustrated by using data from 20 rape strains.
在實例中,采用20個油菜品系的觀察測定資料,說明了典範相關分析在油菜品質育種中的運用。
Results The two canonical correlation index were significant by two variable lists. The occupational burnout would be greater with the rise of their professional stress.
結果兩列變量發現的兩對典型相關系數都達到顯著水平,高職業壓力将導緻更高的職業倦怠水平,高社會支持水平降低倦怠水平。
These results show that the canonical correlation variable, in a more general context, will have optimal properties.
其結果說明典則相關變量在更一般意義下具有最優性質。
The canonical correlation analysis between quality characteristic and ecological factor showed the elevation height has negative correlation with quality characteristic.
對品質性狀與生态因子進行典型相關分析表明,地理因子海拔高度與品質性狀呈負相關。
Kernel Canonical Correlation Analysis(KCCA) is a recently addressed supervised machine learning methods, which is a powerful approach of extracting nonlinear features.
針對該問題,采用核典型相關分析方法進行原始特征的二次提取,得到簡約而重要的二次特征。
This paper applies Canonical Correlation Analysis to identify the driving forces of land use structure in 1992 in Yulin Prefecture.
本文采用了典型相關分析這一經典的數理統計方法,對榆林地區土地利用結構的驅動因子進行了統計分析。
Finally, the application of canonical correlation analysis in rape(B. napus)quality breeding is illustrated by using data from 20 rape str…
在實例中,采用20個油菜品系的觀察測定資料,說明了典範相關分析在油菜品質育種中的運用。
A grey canonical correlation model for analyzing the stability of arthropod community and its application in the tea plantation of Jinshan, Fuzhou, Fujian Province;
本文針對智能化住宅小區安防的使用特點,從相關規範的執行、設計理念、主要功能要求等方面進行了較全面的闡述。
Franco seedlings from 56 provenances and the climatic factors in their original regions were stu***d by using the method of canonical correlation.
種源二年生苗木調查性狀與原産地氣候因子兩組多元變量之間的關系。
Cluster analysis and canonical analysis showed no correlation existed between the populations biochemical genetic structure and its environment.
利用聚類分析和典範分析等研究手段,結果表明各樣本的生化遺傳結構與環境之間不存在顯著的相關性;
This paper analyzes the change of cultivated land intensive use degree from 1990 to 2006 in China and its influencing factors using canonical correlation analysis.
本文運用典型相關分析方法,對全國1990-2006年的耕地利用集約度變化态勢及其影響因素進行了分析。
In addition, character of canonical correlation, and its relation with the ****** correlation and the multiple correlation are given as well as significance tests of canonical correlation.
文中對典型相關的性質及其與簡單相關、複相關的關系,以及典型相關系數的顯著性測驗,均作了詳盡的論述。
Methods A questionnaire survey was conducted among 917 college students by using coping style questionnaires and EMBU. Data were analyzed by canonical correlation analysis with SAS software.
方法采用應付方式問卷和父母教養方式評價量表(EMBU)對917名大學生進行問卷調查,利用SAS統計軟件包進行典型相關分析。
The drive mechanisms of the evolution of landuse pattern are stu***d by means of canonical correlation analysis of NOSA and the trend of evolution of landuse pattern is predicted using GKSIM model.
并運用NOSA的典型相關分析進行了土地利用格局演變驅動機制研究,借助GKSIM模型對土地利用格局演變趨勢進行了預測分析。
Such new variable is tested by pattern recognition for saturated alcohol and ether, combined with block variables' orthogonal computation and canonical correlation analysis.
聯合塊變量正交化和典型相關分析方法,以飽和醇醚的模式識别模型對變量進行了驗證。
As a new type of algorithm, locality preserving canonical correlation analysis (LPCCA) can solve a large number of non-linear problems.
局部保持的典型相關分析(LPCCA)是一種能夠解決大量非線性問題的新型算法。
Canonical correlation analysis and double-stepwise regression analysis were used to discuss the interrelation and interactions of soil main fertility elements and tobacco chemical components.
采用典型相關分析和逐步回歸分析讨論了貴州省主産煙區土壤養分對煙葉的化學成份和品質的影響。
By canonical correlation analysis, sampling time was selected, and foliar mutriment elements closely related to forest tree growth were determined.
用典型相關分析方法選擇采樣時間、确定與林木生長有密切關系的葉片養分元素。
典型相關分析(Canonical Correlation Analysis, CCA)是多元統計中研究兩組變量之間線性關系的方法。其核心思想是尋找兩組變量的線性組合,使得組合後的新變量之間的相關系數達到最大。例如,在心理學研究中,可通過CCA分析受試者的認知能力測試分數(第一組變量)與腦成像數據(第二組變量)之間的潛在關聯。
數學上,給定兩組變量$X=(x_1,...,x_p)$和$Y=(y_1,...,yq)$,CCA旨在找到權重向量$a$和$b$,使得投影後的新變量$U=a^TX$與$V=b^TY$的相關系數最大化: $$ max{a,b} rho = frac{text{cov}(U,V)}{sqrt{text{var}(U)text{var}(V)}} $$ 該優化問題的解可通過廣義特征值分解獲得,其中涉及兩組變量的協方差矩陣$Sigma{XX}$、$Sigma{YY}$以及交叉協方差矩陣$Sigma_{XY}$。
應用領域包括:
權威參考資料可參考普林斯頓大學統計系教材《多元統計分析》(Multivariate Analysis)第12章,或斯坦福大學線上課程《應用多元統計分析》模塊。
: https://www.stat.princeton.edu/~ttseng/teaching.htm
: https://online.stanford.edu/courses/stats305b-applied-multivariate-analysis
典型相關分析(Canonical Correlation Analysis, CCA)是一種多元統計方法,用于研究兩組變量之間的整體線性關系。以下是其核心要點:
numpy
實現均值中心化和協方差計算(參考代碼片段)。典型相關分析通過構建典型變量,揭示兩組多維數據的深層次關聯,適用于多變量相互影響的複雜場景。如需進一步了解公式推導或具體案例,可查閱相關統計教材或文獻。
【别人正在浏覽】