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结果：找到“covariance”相关内容154个，排序为按回复时间降序，搜索更多相关帖子请点击“高级”

GLASS全球光合有效辐射吸收比FAPAR1982-2018
0 个回复 - 1341 次查看 GLASS全球光合有效辐射吸收比FAPAR1982-2018原始数据：马里兰大学GLASS网站范围：全球空间分辨率：0.05deg时间分辨率：8d时间范围：1981-2018数据来源：http://www.glass.umd.edu/ [1]Yuan, W.P., Liu, S., Zhou, ...2022-4-26 09:22 - 小小数据王 - 现金交易版

非线性似不相关（nlsur）、偏向型技术进步1998-2017的数据和stata的do文件
113 个回复 - 12718 次查看声明一下：1978-2017年nlsur回归数据xlsx和nlsur.dat数据是一样的，还有年份是1998-2017年，保存的时候忘了改年份。计算偏向型技术进步时，由于采用非线性似不相关回归进行迭代计算，有待估参数初始值设定和st ...2022-3-9 17:14 - 李重光 - 现金交易版

Engineering Optimization Theory and Practice Solutions Manual
0 个回复 - 1893 次查看国外一本比较优秀的优化理论的书的习题全解，作者RAO，全书主要讲工程优化的理论和算法。目录： 1 Introduction to Optimization 1 1.1 Introduction 1 1.2 Historical Development 3 1.3 Engineering Applica ...2020-5-18 00:01 - 吴云云学习 - 现金交易版

[下载]Analysis of messy data 卷三：analysis of covariance
8 个回复 - 3568 次查看 George A. Milliken Dallas E. Johnson 帮同学找这本书，结果在因为一个很偶然的机会在某国外网站上下到了。在这个论坛搜过发现没有，顺手发上来算了。免费，论坛币什么的就是浮云。书籍资料和评价参考： ...2010-4-23 09:48 - syzdemonhunter - 计量经济学与统计软件

Large Sample Covariance Matrices and High-Dimensional Data Analyisis
1 个回复 - 324 次查看学习大数据非常好的一本书，作者: Jianfeng Yao has rich research experience on random matrix theory and its applications to high-dimensional statistics. In recent years, he has published many authoritat ...2023-2-6 09:36 - guoellicx - 商业数据分析

Wiley Series in Probability and Statistics：High-Dimensional Covariance Estimati
10 个回复 - 2619 次查看 Methods for estimating sparse and large covariance matrices Covariance and correlation matrices play fundamental roles in every aspect of the analysis of multivariate data collected from a variety of ...2013-10-9 08:11 - wpy7983 - 计量经济学与统计软件

Analysis of variance and covariance
4 个回复 - 2337 次查看 Analysis of variance and covariance.. How to choose and construct models for the life sciences (CUP, 2007)2014-7-24 00:41 - 天狮 - 计量经济学与统计软件

Testing Kronecker Product Covariance Matrices for High-Dimensional Matrix-Variat
1 个回复 - 268 次查看【作者(必填)】 2323 【文题(必填)】 Testing Kronecker Product Covariance Matrices for High-Dimensional Matrix-Variate Data 【年份(必填)】 233 【全文链接或数据库名称(选填)】https://academic.oup.co ...2022-11-18 09:40 - internet.hzx - 求助成功区

Estimation of the nonparametric mean and covariance functions for multivariate l
1 个回复 - 604 次查看【作者(必填)】X Tengteng, R Zhang 【文题(必填)】Estimation of the nonparametric mean and covariance functions for multivariate l 【年份(必填)】2022 【全文链接或数据库名称(选填)】https://www.t ...2022-8-15 10:04 - liu2008shu - 求助成功区

Functional PCA With Covariate-Dependent Mean and Covariance Structure
1 个回复 - 436 次查看【作者(必填)】F Ding, S He, DE Jones, JZ Huang 【文题(必填)】Functional PCA With Covariate-Dependent Mean and Covariance Structure 【年份(必填)】2022 【全文链接或数据库名称(选填)】https://www ...2022-8-13 09:46 - liu2008shu - 求助成功区

Interpoint-ranking sign covariance for the test of independence
1 个回复 - 314 次查看【作者(必填)】 23 【文题(必填)】 Interpoint-ranking sign covariance for the test of independence 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/article-abstract/ ...2022-7-31 01:17 - internet.hzx - 求助成功区

Interpoint-ranking sign covariance for the test of independence
1 个回复 - 410 次查看【作者(必填)】 233 【文题(必填)】 Interpoint-ranking sign covariance for the test of independence 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/article-abstract ...2022-7-31 01:24 - internet.hzx - 求助成功区

amos潜变量相关系数的显著性，为什么covariances里面只能看到模型前面几个潜变量的P
2 个回复 - 633 次查看如图所示，已经知道潜变量的相关系数显著性可以通过estimate-scalars-covariances查看了，但是只能看到模型前边几个潜变量的，中介变量和模型后面几个变量的相关系数的显著性要怎么看呢？是我的amos有问题吗？还是 ...2022-4-30 16:36 - 凡汀啦 - LISREL、AMOS等结构方程模型分析软件

【经典教材系列】The Analysis of Covariance and Alternatives: Statistical Methods
106 个回复 - 12809 次查看经典教材2011年第二版，降价出售期已过，想要随时跟踪最新好书，请点击头像下方“加关注”。关注成功后，查看这里即可：三步走把千本好书“一网打尽”！。 [相关阅读] 【经典教材系列】（资料汇总帖，附链接， ...2015-11-24 10:23 - wwqqer - 计量经济学与统计软件

Ball Covariance: A Generic Measure of Dependence in Banach Space
1 个回复 - 475 次查看【作者(必填)】 23 【文题(必填)】 Ball Covariance: A Generic Measure of Dependence in Banach Space 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://www.tandfonline.com/doi/full/10.1080/016 ...2022-3-19 22:37 - internet.hzx - 求助成功区

Testing for unit roots based on sample autocovariances
1 个回复 - 534 次查看【作者(必填)】 23 【文题(必填)】 Testing for unit roots based on sample autocovariances 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/advance-article-abstract/d ...2022-3-16 23:09 - internet.hzx - 求助成功区

Testing for unit roots based on sample autocovariances
2 个回复 - 157 次查看【作者(必填)】 23 【文题(必填)】 Testing for unit roots based on sample autocovariances 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/advance-article-abstract/ ...2022-3-16 23:19 - internet.hzx - 文献求助专区

Convergence of covariance and spectral density estimates for high-dimensional lo
3 个回复 - 853 次查看【作者(必填)】 Danna Zhang, Wei Biao Wu 【文题(必填)】Convergence of covariance and spectral density estimates for high-dimensional locally stationary processes 【年份(必填)】 2021 【全文链接或 ...2022-3-14 14:08 - 512661101 - 文献求助专区

Interpoint-ranking sign covariance for the test of independence
2 个回复 - 689 次查看【作者(必填)】 23 【文题(必填)】 Interpoint-ranking sign covariance for the test of independence 【年份(必填)】 2 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/article-abstract/ ...2022-3-15 08:55 - internet.hzx - 求助成功区

Semiparametric partial common principal component analysis for covariance matric
1 个回复 - 552 次查看【作者(必填)】 23 【文题(必填)】 Semiparametric partial common principal component analysis for covariance matrices【年份(必填)】 23 【全文链接或数据库名称(选填)】https://onlinelibrary.wiley.com/ ...2022-3-15 13:42 - internet.hzx - 求助成功区

Testing for unit roots based on sample autocovariances
1 个回复 - 417 次查看【作者(必填)】 23 【文题(必填)】 Testing for unit roots based on sample autocovariances【年份(必填)】 2323 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/advance-article-abstract/d ...2021-9-13 10:54 - internet.hzx - 求助成功区

重金求Large Sample Covariance Matrices and High Dimensional Data Analysis
16 个回复 - 3594 次查看求此书的电子版。不要那个前几章的预览版哟。2017-12-26 20:09 - crystal8832 - 悬赏大厅

The Gini Equivalents of the Covariance, the Correlation, and the Regression Coef
1 个回复 - 339 次查看【作者(必填)】Shlomo YitzhakiEdna Schechtman 【文题(必填)】The Gini Equivalents of the Covariance, the Correlation, and the Regression Coefficient 【年份(必填)】2012 【全文链接或数据库名称(选填 ...2021-8-25 10:05 - sgltrue - 求助成功区

Determinant residual covariance
0 个回复 - 725 次查看计算联立方程的时候,eviews给出来Determinant residual covariance ，这是什么指标？求助~2020-12-12 09:00 - 远程作业输入 - EViews专版

Testing mutual independence in high dimension via distance covariance
1 个回复 - 416 次查看【作者(必填)】 23 【文题(必填)】 Testing mutual independence in high dimension via distance covariance 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://rss.onlinelibrary.wiley.com/doi/1 ...2020-11-16 10:16 - internet.hzx - 求助成功区

Eviews Kalman滤波WARNING: Singular covariance - coefficients are not unique
10 个回复 - 5106 次查看用Eviews构建状态空间模型出现WARNING: Singular covariance - coefficients are not unique 是什么原因，怎么解决啊？求各位大神……2013-4-6 16:59 - ZhongDingJian - EViews专版

Forecasting the covariance matrix with the DCC GARCH model
1 个回复 - 2834 次查看 How to forecast the covariance matrix with the DCC GARCH model using software package？Many thanks！2009-3-19 14:08 - dieme - 金融学（理论版）

The economic value of range-based covariance between stock and bond returns with
1 个回复 - 396 次查看【作者(必填)】 34 【文题(必填)】 The economic value of range-based covariance between stock and bond returns with dynamic copulas【年份(必填)】 34 【全文链接或数据库名称(选填)】https://www.scienc ...2019-6-20 11:10 - internet.hzx - 求助成功区

Extra-Market Components of Covariance in Security Returns
7 个回复 - 537 次查看【作者(必填)】 Barr Rosenberg 【文题(必填)】 Extra-Market Components of Covariance in Security Returns【年份(必填)】 March 1974 【全文链接或数据库名称(选填)】DOI: https://doi.org/10.2307/2330104 ...2020-5-19 07:51 - leosong - 求助成功区

High-dimensional Covariance Estimation 2013 Mohsen Pourahmadi
0 个回复 - 623 次查看电子书分享Title: High-Dimensional Covariance Estimation: With High-Dimensional Data Author(s): Mohsen Pourahmadi Publisher: Wiley Year: 20132020-4-12 20:25 - shashamiaomiao - 数据分析与数据挖掘

Variances and Covariances of Kendall's Tau and Their Estimation
3 个回复 - 718 次查看【作者(必填)】 sdfsd 【文题(必填)】 Variances and Covariances of Kendall's Tau and Their Estimation【年份(必填)】 1991【全文链接或数据库名称(选填)】 http://www.tandfonline.com/doi/abs/10.1207/s ...2015-3-16 16:43 - internet.hzx - 求助成功区

Variances and Covariances of Kendall's Tau and Their Estimation
2 个回复 - 539 次查看【作者(必填)】 Norman Cliff & Ventura Charlin 【文题(必填)】 Variances and Covariances of Kendall's Tau and Their Estimation【年份(必填)】 1991 【全文链接或数据库名称(选填)】http://www.tandfonlin ...2015-10-9 10:58 - internet.hzx - 求助成功区

Large Sample Covariance Matrices and High-Dimensional Data Analysis
5 个回复 - 1044 次查看【作者(必填)】Jianfeng Yao, Shurong Zheng, Zhidong Bai 【文题(必填)】Large Sample Covariance Matrices and High-Dimensional Data Analysis 【年份(必填)】2015 【全文链接或数据库名称(选填)】https ...2018-8-1 16:55 - nivastuli - 求助成功区

The economic value of range-based covariance between stock and bond returns with
2 个回复 - 259 次查看【作者(必填)】 23 【文题(必填)】 The economic value of range-based covariance between stock and bond returns with dynamic copulas【年份(必填)】 23 【全文链接或数据库名称(选填)】https://www.scienc ...2019-6-28 14:21 - internet.hzx - 求助成功区

correlation 与 covariance区别
12 个回复 - 33714 次查看如题所示，两者都可以便是变量间的相关性。但是他俩应用上的区别是什么？在解答变量间相关关系时，应该用哪个？2015-6-20 12:13 - 小吭 - 计量经济学与统计软件

The economic value of range-based covariance between stock and bond returns with
2 个回复 - 261 次查看【作者(必填)】 23 【文题(必填)】 The economic value of range-based covariance between stock and bond returns with dynamic copulas【年份(必填)】 232 【全文链接或数据库名称(选填)】https://www.scien ...2019-6-20 11:21 - internet.hzx - 求助成功区

自协方差（autocovariance）应该如何计算？附带测试数据
4 个回复 - 9309 次查看测试数据如下所示： Stocks date return A 2010/1/3 1 A 2010/1/4 2 A 2010/1/5 4 A 2010/1/6 3 A 2010/1/7 2 A 2010/1/8 0.7 B 2010/1/3 0.4 B 2010/1/4 0.6 B 2010/1/5 0.4 B 2010/1/6 1 B 2010/1/7 3 ...2014-2-3 11:05 - gerry88 - Stata专版

求助：options里面coef covariance method是什么意义
12 个回复 - 11347 次查看求助：options里面coef covariance method是什么意义,如何选择里面的选项2010-4-21 18:19 - happykun15 - EViews专版

面板数据回归时如何设置GLS weights 和cofe covariance method
3 个回复 - 6598 次查看面板数据的初学者，在做回归时发现在Panle Estimation 有很多要选择的地方哎，上面最上面的那个是选择混合模型、固定模型或是随机模型，倒是了解到可以通过做F检验和H检验来决定。但也看到好些人说其实可以 ...2013-5-14 18:24 - LSBFJ - EViews专版

Large Covariance and Autocovariance Matrices
3 个回复 - 1636 次查看 Large Covariance and Autocovariance Matrices brings together a collection of recent results on sample covariance and autocovariance matrices in high-dimensional models and novel ideas on how to use th ...2018-8-19 23:01 - nivastuli - 博弈论

Multinomial Probit with Structured Covariance for Choice Situations
1 个回复 - 611 次查看【作者(必填)】 Tetsuo Yai 【文题(必填)】 Multinomial Probit with Structured Covariance for Choice Situations with Similar Alternatives 【年份(必填)】 1998 【全文链接或数据库名称(选填)】https:// ...2018-6-25 11:14 - peterxu1969 - 求助成功区

请问：eviews10里的VIEW怎么没有coefficient covariance了？
1 个回复 - 1415 次查看如题，做完回归后，发现没有这一项了。记得6.0、7.0都有啊。谢谢2018-5-18 10:33 - 阿莫西林 - EViews专版

求Protein–protein interaction site predictions with minimum covariance determin
1 个回复 - 437 次查看【作者(必填)】【文题(必填)】Protein–protein interaction site predictions with minimum covariance determinant and Mahalanobis distance 【年份(必填)】【全文链接或数据库名称(选填)】https://www. ...2018-5-4 15:23 - xiaoshiyue - 求助成功区

关于协方差平稳性的问题_协方差平稳（Covariance+Stationary）
5 个回复 - 24793 次查看协方差平稳性要求均值为常数，请问楼里的高手，这里协方差平稳性要求的均值，是指观测值的均值，还是回归函数中的误差项的均值？按其描述来看，似乎应该是观测值的均值，但是如果观测值的均值为常数，那做回归和 ...2014-2-13 11:07 - 行乐 - CFA、CVA、FRM等金融考证论坛

出错 WARNING: Singular covariance - coefficients are not unique
1 个回复 - 1467 次查看用EVIEWS做非线性最小二乘法，可是出错 WARNING: Singular covariance - coefficients are not unique ，下面是结果，请问有坛友知道怎么解决这个问题吗？谢谢呢2017-12-17 11:57 - 镜子Jing - EViews专版

求[springer]A simultaneous testing of the mean vector and the covariance matrix
1 个回复 - 532 次查看【作者(必填)】Masashi Hyodo; Takahiro Nishiyama 【文题(必填)】A simultaneous testing of the mean vector and the covariance matrix among two populations for high-dimensional data 【年份(必填)】2017 ...2018-1-21 20:40 - gymao - 求助成功区

WARNING: Singular covariance - coefficients are not unique
6 个回复 - 6030 次查看 WARNING: Singular covariance - coefficients are not unique 做分析时，碰到这结果，请问该怎么解决？2014-8-24 06:42 - zj126621 - EViews专版

这该怎么重置初始值啊，WARNING: Singular covariance - coefficients are not unique
0 个回复 - 1635 次查看用EVIEWS做非线性最小二乘法，可是出错 WARNING: Singular covariance - coefficients are not unique ，下面是结果,可能是初始值设置的问题，请问有坛友知道怎么解决这个问题吗？谢谢呢 Dependent Variable: Q ...2017-12-16 15:35 - 镜子Jing - EViews专版

Estimating Covariance Matrices
2 个回复 - 981 次查看【作者(必填)】 Robert Litterman and Kurt Winkelmann【文题(必填)】Estimating Covariance Matrices 【年份(必填)】1998 【全文链接或数据库名称(选填)】http://www.docin.com/p-104139756.html2014-11-6 19:12 - 迷途mitu - 求助成功区

Testing homogeneity of several covariance matrices
2 个回复 - 493 次查看【作者(必填)】 M. Rauf Ahmad 【文题(必填)】Testing homogeneity of several covariance matrices and multi-sample sphericity for[/backcolor] high-dimensional[/backcolor] data[/backcolor] under non-no ...2017-9-29 23:31 - ynlihuiqiong - 求助成功区

Inference from concave stochastic frontiers and the covariance of firm efficienc
1 个回复 - 480 次查看【作者(必填)】ImadDash 【文题(必填)】 Inference from concave stochastic frontiers and the covariance of firm efficiency measures across firms【年份(必填)】2003 【全文链接或数据库名称(选填)】htt ...2017-11-10 15:10 - hildegardvon - 求助成功区

请问在统合模型里，PHI和covariance matrix
0 个回复 - 1415 次查看请问在统合模型里，PHI和Covariance Matrix of ETA and KSI有什么意义? 统合模型图里，外源潜在变量间的参数是lisrel输出结果里哪一部分找到的（如图所示）恳求解答！2017-11-8 20:19 - 补刀手铜小猪 - LISREL、AMOS等结构方程模型分析软件

Automobile Ownership Model That Incorporates Captivity and Proximate Covariance
1 个回复 - 472 次查看【作者(必填)】 You-Lian Chu 【文题(必填)】 Automobile Ownership Model That Incorporates Captivity and Proximate Covariance 【年份(必填)】 2016 【全文链接或数据库名称(选填)】http://trrjournalonli ...2017-11-4 08:51 - peterxu1969 - 求助成功区

A simple comprehensive model for the analysis of covariance structures: Some rem
1 个回复 - 458 次查看【作者(必填)】Roderick P. McDonald 【文题(必填)】A simple comprehensive model for the analysis of covariance structures: Some remarks on applications 【年份(必填)】1980 【全文链接或数据库名称 ...2017-10-15 22:27 - qianhaoqi - 求助成功区

求：Asymmetric covariance in spot-futures markets
1 个回复 - 446 次查看题目：Asymmetric covariance in spot-futures markets 作者：Vicente Meneu andHipòlit Torró* 期刊：Journal of Futures Markets Volume 23, Issue 11, pages 1019–1046, November 2003 链接：http://onlin ...2017-8-26 19:27 - daodaory - 求助成功区

Large Dynamic Covariance Matrices
1 个回复 - 469 次查看【作者(必填)】 Robert F. Engle[/backcolor], Olivier Ledoit[/backcolor] & Michael Wolf[/backcolor] 【文题(必填)】 Large Dynamic Covariance Matrices【年份(必填)】 2017 【全文链接或数据库名称(选填)】 ...2017-7-19 16:47 - internet.hzx - 求助成功区

Non-positive-semidefinite covariance input.如何解决
1 个回复 - 1600 次查看 matlab在算有效边界时候，提示Non-positive-semidefinite covariance input.怎么解决呢，之前也有提这个问题，但无解决方案？那个大神可以出来说一下？有的说是matlab本身处理时候的问题？但都没说怎么解 ...2017-7-9 00:41 - 菜园一块田 - MATLAB等数学软件专版

High Dimentional Covariance Estimation
1 个回复 - 1186 次查看 High Dimentional Covariance Estimation2015-7-18 19:29 - gy20081006 - 计量经济学与统计软件

The economic value of range-based covariance between stock and bond returns with
1 个回复 - 580 次查看【作者(必填)】 Chih-Chiang Wu, , Shin-Shun Liang 【文题(必填)】 The economic value of range-based covariance between stock and bond returns with dynamic copulas 【年份(必填)】 2011 【全文链接或数 ...2017-5-2 13:56 - internet.hzx - 求助成功区

A Capital Asset Pricing Model with Time-Varying Covariances
3 个回复 - 692 次查看【作者(必填)】Tim Bollerslev, Robert F. Engle, and Jeffrey M. Wooldridge 【文题(必填)】A Capital Asset Pricing Model with Time-Varying Covariances 【年份(必填)】1988 【全文链接或数据库名称(选 ...2017-4-18 18:48 - MemMao - 求助成功区

Honey, I Shrunk the Sample Covariance Matrix
3 个回复 - 746 次查看【作者(必填)】Olivier Ledoit and Michael Wolf 【文题(必填)】Honey, I Shrunk the Sample Covariance Matrix 【年份(必填)】2004 【全文链接或数据库名称(选填)】http://www.iijournals.com/doi/abs/10. ...2017-4-18 18:37 - MemMao - 求助成功区

文献求助：Generalized least squares with an estimated autocovariance matrixk
4 个回复 - 939 次查看 [ 本帖最后由 Mengguren15 于 2017-4-9 16:49 编辑 ] 【作者(必填)】Takeshi Amemiya 【文题(必填)】Generalized Least Squares with an Estimated Autocovariance Matrix 【年份(必填)】Econometrica, Vol. 41, ...2017-4-9 16:31 - Nelsh--Deng - 求助成功区

Residuals for the linear model with general covariance structure
3 个回复 - 710 次查看【作者(必填)】J Haslett，K Hayes 【文题(必填)】Residuals for the linear model with general covariance structure 【年份(必填)】《Journal of the Royal Statistical Society》, 1997, 60(1):201-215 ...2017-4-2 00:13 - susanna_5433 - 求助成功区

On the Exact Covariance of Products of Random Variables
1 个回复 - 679 次查看 [/backcolor] George W. Bohrnstedt[/backcolor][/backcolor]Arthur S. Goldberg[/backcolor]er 【文题(必填)】 On the Exact Covariance of Products of Random Variables【年份(必填)】 J ...2017-2-18 14:19 - 2008feier - 求助成功区

Modeling nonstationary covariance function with convolution on sphere
1 个回复 - 696 次查看【作者(必填)】Yang Lia, , , Zhengyuan Zhub, 【文题(必填)】Modeling nonstationary covariance function with convolution on sphere 【年份(必填)】2016 【全文链接或数据库名称(选填)】http://www.scienced ...2017-2-13 07:50 - qoiqpwqr - 求助成功区

Structured Robust Covariance Estimation
4 个回复 - 1136 次查看【作者(必填)】Ami Wiesel 【文题(必填)】Structured Robust Covariance Estimation 【年份(必填)】2015 【全文链接或数据库名称(选填)】http://www.nowpublishers.com/article/Details/SIG-0532016-8-24 20:20 - MemMao - 求助成功区

Covariate Shocks、covariate risks、weather-induced covariance 这些术语怎么翻译？
11 个回复 - 2917 次查看共变冲击/风险？还是协变量风险？2017-1-3 15:57 - jdzz - 爱问频道

Analysis of Covariance案例code，望高手指正不足之处！
5 个回复 - 2110 次查看下面给出一个例子说明Analysis of Covariance，不足之处望大家给予指点！将24个实验对象分为3组喂以不同饲料，比较三种饲料a1..a3对增重(x初始重量,y增重)的影响。 data a3; input x y @@; a=int((_n_- ...2016-12-17 20:22 - 孤独翱翔的菜鸟 - SAS专版

关于covariance\correlation matrice 的解释？
1 个回复 - 2025 次查看 -Lower triangular 是covariance matrice, upper triangular 是correlation matrix. 为什么covariance 是0 的时候， correlation 不是0 呢？- 另外, 比如 cov( res(1), res(3)) =0, 我可以说residuals 是不相 ...2016-11-8 11:24 - gnim - 计量经济学与统计软件

求助：用HLM运算后如何查看回归系数的协方差Coefficient Covariances？交互求斜率显著
2 个回复 - 2260 次查看最近写毕业论文，做交互作用，自变量X和调节变量M都是LEVEL-2的，因变量Y是LEVEL-1的。已经测完交叉项显著XM，但是想探究X作用于Y的斜率及其显著性。所以找到了很好的网站http://www.quantpsy.org/interact/hlm2.h ...2015-3-23 11:44 - Shalaishawang - HLM专版

On Portfolio Optimization: Forecasting Covariances and Choosing the Risk Model
2 个回复 - 702 次查看【作者(必填)】Louis K. C. Chan , , Jason Karceski and Josef Lakonishok 【文题(必填)】On Portfolio Optimization: Forecasting Covariances and Choosing the Risk Model 【年 ...2016-8-23 21:33 - MemMao - 求助成功区

求tandfonline文献一篇Tests of Covariance Matrices for High Dimensional Multivari
1 个回复 - 661 次查看【作者(必填)】Ahmad and Dietrich Von Rosenbc 【文题(必填)】Tests of Covariance Matrices for High Dimensional Multivariate Data Under Non Normality 【年份(必填)】2015 【全文链接或数据库名称(选 ...2016-8-10 02:15 - mgymgy - 求助成功区

求springer文献一篇On testing sphericity and identity of a covariance matrix with
1 个回复 - 576 次查看【作者(必填)】M. R. Ahmad 【文题(必填)】On testing sphericity and identity of a covariance matrix with large dimensions 【年份(必填)】2016 【全文链接或数据库名称(选填)】http://link.springer.c ...2016-8-9 12:15 - mgymgy - 求助成功区

关于covariance matrix 因变量的构建
2 个回复 - 1522 次查看数据为平行面板数据 code time feature1 feature2 feature3 feature4 feature5 ... 1 1 ... ... ... ... ... ... ... ... ...2016-7-6 19:57 - runman - 计量经济学与统计软件

关于covariance matrix 因变量的构建
0 个回复 - 1198 次查看数据为平行面板数据 code time feature1 feature2 feature3 feature4 feature5 ... 1 1 ... ... ... ... ... ... ...2016-7-6 19:10 - runman - Stata专版

Financial integration and the price of world covariance risk: Large-vs. small-ca
1 个回复 - 575 次查看【作者(必填)】【文题(必填)】【年份(必填)】【全文链接或数据库名称(选填)】Financial integration and the price of world covariance risk: Large-vs. small-cap stocksW Huang - Journal of Interna ...2016-6-22 22:12 - 马甲甲 - 求助成功区

怎么求variance和covariance？
7 个回复 - 18231 次查看 A B 1) 7,8 215 2) 6,8 280 3) 9,4 356 4) 5,2 38 5) 8,2 167 6) 4,8 127 7) 3,7 8 8) 6,2 201 9) 9,7 346 10) 8,1 241 我用> var(h) 求出了这个： A B A 3.99 ...2011-1-25 03:15 - kiotoqq - R语言论坛

mplus 怎么录入covariance matri的txt文件，...
0 个回复 - 850 次查看 mplus 怎么录入covariance matri的txt文件，主要是不知道协方差矩阵的txt文件到底是怎么得到的，我现在不知道怎么让协方差数据变为TXT文件。62016-5-1 08:11 - loveevolt - 爱问频道

如何获得factor的covariance matrix？
1 个回复 - 2670 次查看如何获得factor的covariance matrix？为什么我在spss中得到的因素间协方差矩阵（covariancematrix）会随着因变量的改变而改变？2009-3-6 20:00 - jessekwork - SPSS论坛

heterogeneity in covariances
0 个回复 - 874 次查看 evidence of significant heterogeneity in covariances 能说明什么呢？说明两个变量之间的某种关系吗？求指导，谢谢。2016-1-24 04:23 - 土豆有理想。 - 计量经济学与统计软件

Covariance-based analyses of biological pathways
3 个回复 - 827 次查看 Oxford JournalsScience & Mathematics BiometrikaAdvance Access10.1093/biomet/asv013 Covariance-based analyses of biological pathways P. Danaher NanoString Technologies, 530 Fairview Ave. N, Seattle, ...2015-6-21 13:53 - oliyiyi - 求助成功区

[案例分析]Analysis of Covariance using WinBUGS
1 个回复 - 1975 次查看 2013-11-6 02:37 - Nicolle - winbugs及其他软件专版

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