單詞
covariance
英 [k??'ve?r??ns]
美[ko'v?r??ns]
基本信息
- n. [數(shù)] 協(xié)方差；共分散
實(shí)用場(chǎng)景例句
- The data on covariance presently available are here.
- 目前所能獲得的關(guān)于協(xié)變的資料都在這兒.
辭典例句
- Analysis of covariance is a combination of regression analysis and variance analysis.
- 協(xié)方差分析足把直線回歸與方差分析結(jié)合起來(lái)應(yīng)用的一種方法.
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- Returns the covariance of two series evaluated over a set ( biased ).
- 返回在某一集合上對(duì)兩個(gè)系列求得的協(xié)方差 ( 偏置填充 ).
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- Covariance analysis with forward stepwise variable selection was carried out.
- 統(tǒng)計(jì)方法采用逐步向前變量選擇協(xié)方差分析.
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- The theoretical foundation of the covariance is pertinence of system theory.
- 協(xié)變性的理論基礎(chǔ)是系統(tǒng)原理中的相關(guān)性.
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- The data was analyzed by chi - square, stepwise regression analysis and covariance statistics.
- 資料用卡方檢驗(yàn) 、 逐步回歸和協(xié)方差分析等.
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- The covariance should be comprehended and followed dialectically.
- 必須辯證地掌握和遵循圖書(shū)館學(xué)發(fā)展的協(xié)變性.
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- Returns the covariance of two series evaluated over a set, using the biased population formula.
- 返回在某一集合上對(duì)兩個(gè)數(shù)據(jù)系列求得的協(xié)方差(使用偏置填充公式).
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- Returns the covariance of two series evaluated over a set, using the unbiased population formula.
- 返回在某一集合上對(duì)兩個(gè)數(shù)據(jù)系列求得的協(xié)方差(使用非偏置填充公式).
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- POOLVD pooledvariance - covariance matrix from two or more data matrices. Dan also perform a test for homogeneity.
- 路程經(jīng)過(guò)過(guò)程計(jì)較兩個(gè)或兩個(gè)以上的數(shù)據(jù)矩陣孕育發(fā)生整體方差協(xié)方差矩陣. 可以用于同質(zhì)性查驗(yàn).
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- The observations included the micrometeorology, radiation, eddy covariance observation systems and soil water content profiles.
- 觀測(cè)系統(tǒng)主要包括:常規(guī)氣象 、 輻射 、 渦度相關(guān)法觀測(cè)系統(tǒng)以及土壤水分觀測(cè)剖面.
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- The ranks and natural logarithms of determinants printed are those of the group covariance matrices.
- 上圖反映了協(xié)方差矩陣的秩和行列式的對(duì)數(shù)值,由行列式值可以看出協(xié)方差矩陣不是病態(tài)矩陣.
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- A real - time estimation of a prior variance - covariance for GPS observations is suggested in this paper.
- 本文提出了一種GPS觀測(cè)量的先驗(yàn)方差 - 協(xié)方差矩陣的 實(shí)時(shí) 估計(jì)方法.
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- Results show that the Copula based method produces better backtest results than the traditional variance - covariance method.
- 結(jié)果表明,基于copula方法估計(jì)的投資組合風(fēng)險(xiǎn)值比方差協(xié)方差方法估計(jì)的投資組合風(fēng)險(xiǎn)值更接近實(shí)際數(shù)據(jù).
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- The algorithm is developed , which avoids computing correlated estimate covariance the advantages of the distributed structure.
- 該算法保持了分布式系統(tǒng)在結(jié)構(gòu)上與計(jì)算上的優(yōu)點(diǎn), 仿真實(shí)驗(yàn)表明,算法的性能與傳統(tǒng)分布式次優(yōu)融合算法的估計(jì)性能相近.
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covariance相關(guān)單詞