结果：找到“cluster by”相关内容19个，排序为按回复时间降序，搜索更多相关帖子请点击“高级”
Simple formulas for standard errors that cluster by both firm and time
2 个回复 - 771 次查看 【作者(必填)】Samuel B.Thompson 【文题(必填)】Simple formulas for standard errors that cluster by both firm and time 【年份(必填)】January 2011 【全文链接或数据库名称(选填)】http://www.scienc ...2017-9-7 20:29 - vivagcy - 求助成功区
2 个回复 - 771 次查看 【作者(必填)】Samuel B.Thompson 【文题(必填)】Simple formulas for standard errors that cluster by both firm and time 【年份(必填)】January 2011 【全文链接或数据库名称(选填)】http://www.scienc ...2017-9-7 20:29 - vivagcy - 求助成功区
APS:Percolation of the site random-cluster model by Monte Carlo method
1 个回复 - 607 次查看 【作者(必填)】 Songsong Wang, Wanzhou Zhang, and Chengxiang Ding【文题(必填)】Percolation of the site random-cluster model by Monte Carlo method 【年份(必填)】 Phys. Rev. E 92, 022127 – Published ...2016-6-7 09:13 - qijiongli - 求助成功区
1 个回复 - 607 次查看 【作者(必填)】 Songsong Wang, Wanzhou Zhang, and Chengxiang Ding【文题(必填)】Percolation of the site random-cluster model by Monte Carlo method 【年份(必填)】 Phys. Rev. E 92, 022127 – Published ...2016-6-7 09:13 - qijiongli - 求助成功区
Clustering algorithms [by] John A. Hartigan.
2 个回复 - 1504 次查看 【作者(必填)】 John A. Hartigan. 【文题(必填)】 Clustering algorithms 【年份(必填)】 1975 【全文链接或数据库名称(选填)】http://162.105.138.200/uhtbin/cgisirsi/x/0/0/5?searchdata1=^C2989232016-5-6 10:59 - 征夷大将军 - 求助成功区
2 个回复 - 1504 次查看 【作者(必填)】 John A. Hartigan. 【文题(必填)】 Clustering algorithms 【年份(必填)】 1975 【全文链接或数据库名称(选填)】http://162.105.138.200/uhtbin/cgisirsi/x/0/0/5?searchdata1=^C2989232016-5-6 10:59 - 征夷大将军 - 求助成功区
求science最近发的关于聚类的文章Clustering by fast search and find of density
4 个回复 - 4311 次查看 【作者(必填)】Alex Rodriguez,Alessandro Laio 【文题(必填)】Clustering by fast search and find of density peaks 【年份(必填)】2014 【全文链接或数据库名称(选填)】http://www.sciencemag.org/conte ...2014-7-1 18:36 - semenljw - 求助成功区
4 个回复 - 4311 次查看 【作者(必填)】Alex Rodriguez,Alessandro Laio 【文题(必填)】Clustering by fast search and find of density peaks 【年份(必填)】2014 【全文链接或数据库名称(选填)】http://www.sciencemag.org/conte ...2014-7-1 18:36 - semenljw - 求助成功区
Problems and Prospects for Clusters in Theory and Practice-by Philip Cooke
4 个回复 - 2910 次查看 Problems and Prospects for Clusters in Theory and Practice Philip Cooke, Centre for Advanced Studies, Cardiff University IntroductionWe have seen that since Marshall, observers have sp ...2008-5-1 10:05 - flamingstone - 区域经济学
4 个回复 - 2910 次查看 Problems and Prospects for Clusters in Theory and Practice Philip Cooke, Centre for Advanced Studies, Cardiff University IntroductionWe have seen that since Marshall, observers have sp ...2008-5-1 10:05 - flamingstone - 区域经济学
如何在控制了公司固定效应后，cluster by firm，并且做组间差异检验
9 个回复 - 11659 次查看 在文献中看到“Regressions 2–6 include firm fixed effects. Errors in parentheses are clustered at the firm level.” 效仿它的做法，正常的命令应该是： xi:xtreg y x i.year ,fe vce cluster(number) 注： ...2018-6-8 16:03 - caicsmile - Stata专版
9 个回复 - 11659 次查看 在文献中看到“Regressions 2–6 include firm fixed effects. Errors in parentheses are clustered at the firm level.” 效仿它的做法，正常的命令应该是： xi:xtreg y x i.year ,fe vce cluster(number) 注： ...2018-6-8 16:03 - caicsmile - Stata专版
Identifying Tourists and Locals by K-Means Clustering Method
1 个回复 - 778 次查看 【作者(必填)】 Sun 【文题(必填)】 Identifying Tourists and Locals by K-Means Clustering Method from Mobile Phone Signaling Data 【年份(必填)】 2021 【全文链接或数据库名称(选填)】https://ascelibr ...2021-11-13 15:46 - peterxu1969 - 求助成功区
1 个回复 - 778 次查看 【作者(必填)】 Sun 【文题(必填)】 Identifying Tourists and Locals by K-Means Clustering Method from Mobile Phone Signaling Data 【年份(必填)】 2021 【全文链接或数据库名称(选填)】https://ascelibr ...2021-11-13 15:46 - peterxu1969 - 求助成功区
cluster 不能和bysort 一起使用，我用了论坛中的一个程序，但是还是不能用
2 个回复 - 991 次查看 cap program drop bys_box program define bys_box,byable(onecall) sortpreserve version 13.0 tempvar anchor_var gen `anchor_var' = _n tempvar group qui if _by() { egen ...2020-11-19 18:39 - hanxiean - Stata专版
2 个回复 - 991 次查看 cap program drop bys_box program define bys_box,byable(onecall) sortpreserve version 13.0 tempvar anchor_var gen `anchor_var' = _n tempvar group qui if _by() { egen ...2020-11-19 18:39 - hanxiean - Stata专版
请教一下cluster by time 和在模型里加入year dummy是否有相同的作用或效果？
1 个回复 - 669 次查看 如题。2019-11-1 13:32 - _时玦 - Stata专版
1 个回复 - 669 次查看 如题。2019-11-1 13:32 - _时玦 - Stata专版
Standard errors are clustered by company and year
5 个回复 - 7958 次查看 Standard errors areclustered by company and year，请问这句是什么意思？为什么要cluster Standard errors by company and year？2014-12-28 11:37 - janelin31 - 计量经济学与统计软件
5 个回复 - 7958 次查看 Standard errors areclustered by company and year，请问这句是什么意思？为什么要cluster Standard errors by company and year？2014-12-28 11:37 - janelin31 - 计量经济学与统计软件
Machine learning. Clustering by fast search and find of density peaks.
0 个回复 - 391 次查看 摘要：Cluster analysis is aimed at classifying elements into categories on the basis of their similarity. Its applications range from astronomy to bioinformatics...http://europepmc.org/abstract/med/24 ...2018-1-29 15:00 - AIworld - 人工智能论文版
0 个回复 - 391 次查看 摘要：Cluster analysis is aimed at classifying elements into categories on the basis of their similarity. Its applications range from astronomy to bioinformatics...http://europepmc.org/abstract/med/24 ...2018-1-29 15:00 - AIworld - 人工智能论文版
clustered by firm / time 请教
3 个回复 - 2550 次查看 请问在eviews中，“White diagonal” standard errors 是指 “robust” standard errors “White period” standard errors “White cross-section” standard errors 分别是指什么？ 哪一个对应clustered by f ...2014-10-5 01:36 - liuxianwei - EViews专版
3 个回复 - 2550 次查看 请问在eviews中，“White diagonal” standard errors 是指 “robust” standard errors “White period” standard errors “White cross-section” standard errors 分别是指什么？ 哪一个对应clustered by f ...2014-10-5 01:36 - liuxianwei - EViews专版
Cluster by firm时，如果每个公司只有一个观测值，会有问题么？
1 个回复 - 2101 次查看 我的dependent variables的correlation 还挺高的。 这样的话，做Cross-sectional regression应该用什么办法应对这个问题呢？ Cluster by firm时，如果每个公司都只有一个观察值（因为只有一年的数据），这样会有 ...2013-10-24 16:33 - 一眼瞬间 - SAS专版
1 个回复 - 2101 次查看 我的dependent variables的correlation 还挺高的。 这样的话，做Cross-sectional regression应该用什么办法应对这个问题呢？ Cluster by firm时，如果每个公司都只有一个观察值（因为只有一年的数据），这样会有 ...2013-10-24 16:33 - 一眼瞬间 - SAS专版
Cluster analysis followed by network meta-analysis to compare efficacy and safet
0 个回复 - 736 次查看 【作者(必填)】Harenberg, J.Marx, S. Zolfaghari, S. Weiss, C. Wehling, M. Schulze, A. Dahl, O. E. 【文题(必填)】Cluster analysis followed by network meta-analysis to compare efficacy and safety ...2013-7-24 21:31 - sunfeng06 - 文献求助专区
0 个回复 - 736 次查看 【作者(必填)】Harenberg, J.Marx, S. Zolfaghari, S. Weiss, C. Wehling, M. Schulze, A. Dahl, O. E. 【文题(必填)】Cluster analysis followed by network meta-analysis to compare efficacy and safety ...2013-7-24 21:31 - sunfeng06 - 文献求助专区
Our model are estimated with SEs clusterd by firms with the following econometri
2 个回复 - 1247 次查看 Our model are estimated with SEs clusterd by firms with the following econometric specification中的SEs该怎么理解，是指什么特别的方法么2013-1-17 17:28 - Oneday1990 - 经济金融数学专区
2 个回复 - 1247 次查看 Our model are estimated with SEs clusterd by firms with the following econometric specification中的SEs该怎么理解，是指什么特别的方法么2013-1-17 17:28 - Oneday1990 - 经济金融数学专区
请问大神们这段语句是什么意思呀：plot can1*can3 =cluster/haxis=-3.0 to 41 by 0.5
2 个回复 - 2598 次查看 请问大神们这段语句是什么意思呀：plot can1*can3 =cluster/haxis=-3.0 to 41 by 0.5 vaxis=-0.2 to 0.15 by 0.0005;2012-12-29 21:23 - lousum - SAS专版
2 个回复 - 2598 次查看 请问大神们这段语句是什么意思呀：plot can1*can3 =cluster/haxis=-3.0 to 41 by 0.5 vaxis=-0.2 to 0.15 by 0.0005;2012-12-29 21:23 - lousum - SAS专版
[求助]Cluster Analysis by Brian S. Everitt (Author), Sabine Landau (Author), Morve
1 个回复 - 3554 次查看 Cluster Analysis (Hardcover)by Brian S. Everitt (Author), Sabine Landau (Author), Morven Leese (Author) Editorial Reviews Book DescriptionCluster analysis comprises a range of methods of classifying ...2007-10-7 05:17 - hanszhu - 计量经济学与统计软件
1 个回复 - 3554 次查看 Cluster Analysis (Hardcover)by Brian S. Everitt (Author), Sabine Landau (Author), Morven Leese (Author) Editorial Reviews Book DescriptionCluster analysis comprises a range of methods of classifying ...2007-10-7 05:17 - hanszhu - 计量经济学与统计软件
