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工具变量2sls显示Warning: variance matrix is nonsymmetric or highly singular attach_img Stata专版 hhhhhhhuihui 2022-8-31 1 3135 huawumie8 2022-11-27 09:35:13
悬赏 Testing Kronecker Product Covariance Matrices for High-Dimensional Matrix-Variat - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-11-18 1 429 giresse 2022-11-18 15:24:07
方差膨胀系数是什么 数据分析与数据挖掘 我是小趴菜 2022-11-3 0 504 我是小趴菜 2022-11-3 10:18:27
有偿求一个擅长金融数学的老师！ attach_img 悬赏大厅 Inkpianting 2022-10-19 0 603 Inkpianting 2022-10-19 14:02:59
Symmetry and economic invariance an introduction attachment 外文文献专区 xiaoweioliver 2022-9-21 1 691 三江鸿 2022-10-6 16:50:48
企业使用多重线性回归需要满足哪些前提条件？ 爱问频道 天行健精益 2022-9-5 0 567 天行健精益 2022-9-5 15:00:49
六西格玛-多元回归有哪些基本概念？ 爱问频道 天行健精益 2022-9-5 0 965 天行健精益 2022-9-5 14:53:37
悬赏 Interpoint-ranking sign covariance for the test of independence - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-7-31 1 469 giresse 2022-7-31 08:54:13
悬赏 Interpoint-ranking sign covariance for the test of independence - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-7-31 1 572 giresse 2022-7-31 08:50:08
【统计理论与方法】 Analysis of Variance, Design, and Regression (2016, 2e) 李旭光- 辽宁大学商学院 cmwei333 2022-7-30 0 1 tianwk 2022-7-30 08:59:24
随机参数logit Stata专版 天天努力学习 2022-6-23 0 957 天天努力学习 2022-6-23 11:11:19
悬赏 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 - [悬赏 20 个论坛币] attach_img LISREL、AMOS等结构方程模型分析软件 凡汀啦 2022-4-30 2 1105 nicokuang 2022-6-4 05:30:36
悬赏 Estimation of error variance via ridge regression - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-3-28 1 744 giresse 2022-3-28 19:52:43
悬赏 Ball Covariance: A Generic Measure of Dependence in Banach Space - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-3-19 1 641 giresse 2022-3-20 15:46:55
悬赏 Testing for unit roots based on sample autocovariances - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-3-16 1 682 缺伊不可 2022-3-18 20:58:59
悬赏 Testing for unit roots based on sample autocovariances - [悬赏 1 个论坛币] 文献求助专区 internet.hzx 2022-3-16 2 367 genius1232 2022-3-17 16:33:07
悬赏 Interpoint-ranking sign covariance for the test of independence - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-3-15 2 819 giresse 2022-3-15 15:13:23
悬赏 On F-modeling based Empirical Bayes Estimation of Variances - [!reward_solved!] attachment 求助成功区 internet.hzx 2022-3-15 1 677 allen515 2022-3-15 12:16:23
悬赏 Valuation of options under a constant elasticity of variance process and stochas - [!reward_solved!] attachment 求助成功区 ssylzz 2022-2-15 3 934 giresse 2022-2-16 08:27:15
悬赏 Pricing Discretely Sampled Variance Swaps with Cap/Floor Under Heston Stochastic - [!reward_solved!] attachment 求助成功区 ssylzz 2022-2-15 2 660 giresse 2022-2-16 08:22:20
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