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安慰剂检验Stata代码（随机处理解释变量500次）
19 个回复 - 8779 次查看安慰剂检验Stata代码示例数据：黄色为被解释变量，蓝色为解释变量，浅绿色为控制变量安慰剂检验让Exp（解释变量）对Risk（被解释变量）的冲击变得随机（由计算机生成），再使这个随机过程重复500次， ...2021-1-14 22:43 - Nochoal - 现金交易版

动态空间杜宾模型stata 程序、代码、数据
13 个回复 - 7855 次查看动态空间杜宾模型的例子，有代码，有空间权重矩阵，有数据。需要的可以下载。例子里包括三个模型 1 SAR 空间滞后模型 2 SEC 空间误差模型 3 SDM 动态空间杜宾模型命令窗口输入： do sdm 部分结果如下 Co ...2020-7-20 03:59 - ujbbv - 现金交易版

【更新】面板数据熵值法计算综合指数Stata代码（附示例数据）
500 个回复 - 202153 次查看面板数据熵值法计算综合指数Stata代码使用方法：整理数据成类似格式需要设置正向指标和负向指标根据指标性质进行修改如果全部为正向指标，改成这样后面的代码一起无需改动，直 ...2018-11-23 14:42 - momingqimiao7 - 现金交易版

基于A. David Wunsch 复变函数论第3版习题答案Complex Variables with Application
1 个回复 - 604 次查看基于A. David Wunsch 复变函数论第3版习题答案（英文）Complex Variables with Applications =A. David Wunsch and Michael F. Brown - Complex Variables with Applications - The Solution Manual (2004) CO ...2022-5-29 16:29 - lily-2021 - 现金交易版

论坛手法 An illustrative guide to multivariable and vector calculus
0 个回复 - 584 次查看 An illustrative guide to multivariable and vector calculus 作者 Miklavcic SPRINGER 出版社2023-2-26 11:24 - alphabeta12 - 计量经济学与统计软件

Semiparametric Efficient G-estimation with Invalid Instrumental Variables
1 个回复 - 166 次查看【作者(必填)】 23 【文题(必填)】 Semiparametric Efficient G-estimation with Invalid Instrumental Variables 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/advance ...2023-2-18 17:17 - internet.hzx - 求助成功区

Generalized one-sided laws of the iterated logarithm for random variables barely
1 个回复 - 511 次查看【作者(必填)】André Adler[/backcolor] [/backcolor] 【文题(必填)】Generalized one-sided laws of the iterated logarithm for random variables barely with or without finite mean 【年份(必填)】Journal ...2022-9-11 22:42 - scottan123456 - 求助成功区

Efficient adjustment sets in causal graphical models with hidden variables
1 个回复 - 511 次查看【作者(必填)】 23 【文题(必填)】 Efficient adjustment sets in causal graphical models with hidden variables 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/articl ...2022-7-31 01:28 - internet.hzx - 求助成功区

Efficient adjustment sets in causal graphical models with hidden variables
3 个回复 - 779 次查看【作者(必填)】 23 【文题(必填)】 Efficient adjustment sets in causal graphical models with hidden variables 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://academic.oup.com/biomet/articl ...2022-3-28 14:59 - internet.hzx - 求助成功区

Conditional coverage probability of confidence intervals in errors-in-variables
1 个回复 - 716 次查看【作者(必填)】 23 【文题(必填)】 Conditional coverage probability of confidence intervals in errors-in-variables and related models【年份(必填)】 23 【全文链接或数据库名称(选填)】https://www.scie ...2022-3-21 09:08 - internet.hzx - 求助成功区

An introduction to instrumental variable assumptions, validation and estimation.
2 个回复 - 718 次查看【作者(必填)】Lousdal ML.[/backcolor] 【文题(必填)】An introduction to instrumental variable assumptions, validation and estimation.[/backcolor] 【年份(必填)】2018 【全文链接或数据库名称(选填 ...2019-7-16 23:13 - andy162639 - 求助成功区

AOM： The Dynamic, Diverse, and Variable Faces of Organizational Identity
1 个回复 - 573 次查看【作者(必填)】 Michael A. Hogg and Deborah J. Terry 【文题(必填)】 The Dynamic, Diverse, and Variable Faces of Organizational Identity 【年份(必填)】 Published Online:1 Jan 2000 【全文链接或数据 ...2020-2-1 05:09 - yinhezhiwang - 求助成功区

Complex Variables: Introduction and Applications (Cambridge Texts in Applied Mat
4 个回复 - 1846 次查看 Complex Variables: Introduction and Applications (Cambridge Texts in Applied Mathematics) 2nd Edition by Mark J. Ablowitz (Author), Athanassios S. Fokas (Author) ISBN-13: 978-0521534291 ISBN-1 ...2015-8-6 13:34 - ping_ - 金融学（理论版）

求救大神stata运行事件研究法出现variable date does not uniquely identify observat
2 个回复 - 1802 次查看 do文件 eventstudy2 stockid date using security_returns, ret(sreturn) evwlb(-10) evwub(10) /// model(FM) marketfile(marketfile) mar(mreturn) car1LB(-10) car1UB(10) /// car2LB(-3) car2UB(3) /// car3 ...2022-7-28 17:34 - 斌1314 - 新手入门区

stata做事件时研究egen id=group(group_id) 一直报错variable __000001 not found r(1
11 个回复 - 8188 次查看我在用stata按照普林斯顿大学的方法进行事件研究时，代码运行到循环之前的 egen id=group(group_id) 就一直报错说variable __000001 not found r(111) 是为什么？？完整的代码如下use eventdates, clearsort compan ...2017-3-3 16:51 - changpengman - Stata专版

关于merge，merge1:1时出现variables stk year do not uniquely identify observation
10 个回复 - 14286 次查看求助merge，merge1:1，1:m时出现variables stk year do not uniquely identify observation，所以用了m:1,但是结果不对，为什么using里一个stk只有一个年份有数据，合并后一个stk里所有年份都变成有数据了？比如， ...2017-8-21 10:08 - xdddian - Stata专版

在选择mg估计时，“invalid new variable name; variable name ec is in the list of
8 个回复 - 2678 次查看在选择mg估计时，老是出现“invalid new variable name; variable name ec is in the list of predictors是怎么回事啊2021-4-16 21:32 - 大心脏跑跑 - Stata专版

variable A_A_Stkcd does not uniquely identify observations in the using data
34 个回复 - 93829 次查看数据合并时遇到variable A_A_Stkcd does not uniquely identify observations in the using data r(459); 有可能是哪些问题，确认了，没有重复，没有空白。2012-9-17 23:35 - suran87 - Stata专版

合并后的数据无法做xtreg回归，提示variable id not found
4 个回复 - 4076 次查看 master数据可以跑xtreg回归，完全正常，但我用using数据与master数据根据year和company进行merge（m:1）之后，新生成的master1数据无法做xtreg，提示variable id not found。xtreg时所选择的变量确认存在于数据中。请 ...2019-8-25 02:10 - 江濆遇同声1 - 数据求助

在导入csv格式文件的时候跳出来了no room to add more variables because of width
2 个回复 - 1229 次查看求问各位大佬，在导入文件的时候跳出来了： no room to add more variables because of width Width refers to the number of bytes required to store a single observation; it is the sum of the widt ...2021-11-13 18:32 - xixij1998 - Stata专版

关于报错 invalid type (list) for variable 我尝试了网上很多方法还是解决不了！
6 个回复 - 3051 次查看这是报错内容 Error in model.frame.default(all_vars_terms, data, na.action = na.pass, : invalid type (list) for variable 'resp_rate(area) 这是我想进行的分析 fit_culm_numbers2021-4-4 23:55 - wucco123 - R语言论坛

pvar的helm命令出现variable id not found
18 个回复 - 18404 次查看根据help里的命令，运行 xtset id year 然后运行helm x1 x2 x3这条命令时出现variable id not found r(111);请问这个问题怎么解决？2014-5-16 00:31 - gongshundaren - Stata专版

PSM中，pstest出现：Error: provide treatment indicator variable
1 个回复 - 4437 次查看在做psmatch2的时候，已经出现了“没有找到稳定的最优的估计值”的问题，截图如下：不知道是不是这步没做好，才导致后面pstest的问题，求大神指教！！感激！！！2020-12-19 09:54 - Emmadyq - Stata专版

第一次尝试DID-PSM模型想采用滞后一期数据但是提示factor-variable and time-series
2 个回复 - 4132 次查看您好，我是第一次尝试DID-PSM模型 lev roa largestholderrate toptenholdersrate想采用滞后一期的数据，想请教一下我的代码问题出在哪里 diff il, t(treated) p(t) cov(reg l.lev growth age l.roa l.largesthol ...2019-6-8 01:03 - Elaine1031 - Stata专版

求助：做psm+did 结果出现factor variables and time-series operators not allowed
3 个回复 - 1830 次查看命令不知道错在哪里了： diff y, t(d) p(t) kernel id(pid) logit cov(x1 x2 x3 i.country i.year) report support 这个i.country i.year是时间和城市固定效应。2019-9-19 12:02 - shidakaia9 - Stata专版

variable fid not found
3 个回复 - 6670 次查看回归中没有fid这个变量，但为什么每次回归都会出现 variable fid not found ？而且随便点一个xtreg a 也会出现 variable fid not found 。。。谢谢各位~~~2014-1-10 09:40 - Singing111 - Stata专版

Variable Reduction in SAS by Using Weight of Evidence and Information Value
3 个回复 - 2364 次查看 Variable reduction is a crucial step for accelerating model building without losing potential predictive power of the data. This paper provides a SAS macro that uses Weight of Evidence and Informati ...2016-2-19 12:10 - neuroexplorer - SAS专版

Identification of Causal Effects Using Instrumental Variables
4 个回复 - 1292 次查看【作者(必填)】Joshua D. Angrist, Guido W. Imbens & Donald B. Rubin 【文题(必填)】Identification of Causal Effects[/backcolor] Using Instrumental Variables 【年份(必填)】1996 【全文链接或数据 ...2014-6-20 21:53 - throndon - 求助成功区

Instrumental variables estimation in political science: a reader’s guide.
2 个回复 - 836 次查看【作者(必填)】 Sovey AJ, Green DP. 【文题(必填)】 Instrumental variables estimation in political science: a reader’s guide. 【年份(必填)】 2011. American Journal of Political Science. 55:188–20 ...2015-2-3 19:53 - hartliu - 求助成功区

Instrumental Variables and the search for Identification-from supply and demand
1 个回复 - 1320 次查看 Instrumental Variables and the search for Identification-from supply and demand to natural experiments2014-9-4 09:12 - yanwenshou - 计量经济学与统计软件

【求助】为什么总是出现varlist: id: string variable not allowed
13 个回复 - 41302 次查看如题，想用面板数据来做普通回归，在宣布面板的时候为什么输入xtset id year 出来的结果是varlist: id: string variable not allowed 这样的？数据部分如图看到论坛上的方法，用destring 和encode 结果如图2015-7-9 22:14 - 棒棒牛牛 - Stata专版

Incorrect Inferences When Using Residuals as Dependent Variables
1 个回复 - 890 次查看【作者(必填)】WEI CHEN[/backcolor] PAUL HRIBAR[/backcolor] SAMUEL MELESSA[/backcolor] 【文题(必填)】Incorrect Inferences When Using Residuals as Dependent Variables 【年份(必填)】 22 Febru ...2018-11-26 10:13 - xuelida - 求助成功区

Urban Network-Wide Traffic Variables and Their Relations
2 个回复 - 887 次查看【作者(必填)】 Siamak Ardekani 【文题(必填)】 Urban Network-Wide Traffic Variables and Their Relations 【年份(必填)】 1987 【全文链接或数据库名称(选填)】https://pubsonline.informs.org/doi/abs/10 ...2018-7-21 08:51 - peterxu1969 - 求助成功区

环境核算 The identification and measurement of environmental process variable
0 个回复 - 428 次查看 TJ_10_1963_002 环境核算 Dave,r.h. The identification and measurement of environmental process variables that are related to educational achievement Unpublished ph.d dissertation,university of chic ...2018-4-10 09:40 - 吴淑丽 - 经济统计专版

环境核算 The identification and measurement of environmental process variable
0 个回复 - 323 次查看 TJ_10_1963_001 环境核算 Wolf,r.m. The identification and measurement of environmental process variables related to intelligence Unpublished ph.d.dissertation,university of chicago2018-4-10 09:34 - 吴淑丽 - 经济统计专版

循环程序总是出现variable id1999 not found这种错误提示？
0 个回复 - 1969 次查看 forval i = 1999/2006{ *设i为当年，j为下一年： local j = `i'+1 **Step 10 首先根据法人代码（firm_id/id）进行匹配，分离出id重复的样本： disp "Step 10 " use D:\stata13\ado\pe ...2018-3-15 13:26 - CeciliaLeeli - Stata专版

请问一下大家，在用stata MMsel程序，出现variable pid not found 是什么情况
4 个回复 - 5683 次查看请问一下大家，在用stata MMsel程序做分位数分解的时候，出现“variable pid not found” 是什么情况，又该如何解决。谢谢2016-4-6 00:57 - dkq1027 - Stata专版

Limit Theorems for Sums of Dependent and Non-Identical Bernoulli Random Variable
1 个回复 - 319 次查看【作者(必填)】Deepak Singh &Somesh Kumar 【文题(必填)】Limit Theorems for Sums of Dependent and Non-Identical Bernoulli Random Variables 【年份(必填)】23 Oct 2019 【全文链接或数据库名称(选填) ...2019-11-21 19:19 - phdcs_2008 - 求助成功区

projecteuclid Sparse oracle inequalities for variable selection
2 个回复 - 903 次查看【作者(必填)】Clément Levrard 【文题(必填)】Sparse oracle inequalities for variable selection via regularized quantization 【年份(必填)】2018 【全文链接或数据库名称(选填)】https://projecteuc ...2017-8-7 01:33 - 352693585 - 求助成功区

Residential satisfaction as an intervening variable in residential mobility
7 个回复 - 688 次查看【作者(必填)】Alden Speare 【文题(必填)】Residential satisfaction as an intervening variable in residential mobility 【年份(必填)】1974 【全文链接或数据库名称(选填)】https://link.springer.com ...2017-5-25 17:30 - bofeng - 求助成功区

Scaling or wider bioequivalence limits for highly variable drugs and for the spe
1 个回复 - 713 次查看【作者(必填)】Tothfalusi L1, Endrenyi L, Midha KK. 【文题(必填)】Scaling or wider bioequivalence limits for highly variable drugs and for the spe 【年份(必填)】2003 【全文链接或数据库名称(选填 ...2017-3-13 13:41 - ihc7788c - 求助成功区

Scaling or wider bioequivalence limits for highly variable drugs and for the spe
0 个回复 - 655 次查看【作者(必填)】Tothfalusi L1, Endrenyi L, Midha KK. 【文题(必填)】Scaling or wider bioequivalence limits for highly variable drugs and for the spe 【年份(必填)】2003 【全文链接或数据库名称(选填 ...2017-3-10 12:41 - ihc7788c - 文献求助专区

Individual and average bioequivalence of highly variable drugs and drug products
1 个回复 - 618 次查看【作者(必填)】Midha KK1, Rawson MJ, Hubbard JW. 【文题(必填)】Individual and average bioequivalence of highly variable drugs and drug products 【年份(必填)】1997 【全文链接或数据库名称(选填)】 ...2017-3-7 08:45 - ihc7788c - 求助成功区

eviews回归提示： invalid specification for the breaking variables or coefficient
0 个回复 - 1385 次查看如题，这是什么错误啊，我是按照userguide上面的操作步骤来的啊2016-4-2 14:02 - 蓝幽若 - EViews专版

Entropy-based Measures of Weight of Evidence and Information Value for Variable
0 个回复 - 2068 次查看 Weight of Evidence (WOE) and Information Value (IV) have become important tools for analyzing and modeling binary outcomes such as default in payment, response to a marketing campaign, etc. Thi ...2016-2-19 12:12 - neuroexplorer - SAS专版

Latent Variable Modeling Using R: A Step-by-Step Guide
150 个回复 - 24774 次查看 This step-by-step guide is written for R and latent variable model (LVM) novices. Utilizing a path model approach and focusing on the lavaan package, this book is designed to help readers quickly ...2014-5-23 20:38 - 大家开心 - R语言论坛

怪事~~矩阵local variable下的invalid syntax
1 个回复 - 1497 次查看执行下面这段代码有问题么？为什么显示invalid syntax 执行下面代码没有任何问题 mat a = J(4,4,1) + I(4) mat a[3,2] = 9 local c = colsof(a) // 返回矩阵 a 的列数 mat ss = J(`c',1,1) // ...2015-8-16 14:31 - lxfkxkr - Stata专版

求Exact Aggregation When Prices Are Variable Across Individuals
1 个回复 - 553 次查看【作者(必填)】Lawrence J. Lau and Ho-Mou Wu 【文题(必填)】Exact Aggregation When Prices Are Variable Across Individuals 【年份(必填)】1987 【全文链接或数据库名称(选填)】http://www.sciencedire ...2015-4-12 16:09 - l1162289744 - 求助成功区

Longidinal Research with Latent Variables
0 个回复 - 1535 次查看 The book “Longitudinal Research with Latent Variables” addresses the great majority of researchers in the behavioural and related sciences, in academic as well as non-academic environments. This inc ...2014-11-13 17:10 - sbzx - 计量经济学与统计软件

求电子书，Applied Regression Analysis and Multivariable Methods by David
6 个回复 - 2080 次查看这是上课的制定教材，有没有PDF电子版的下载？有谁可以分享一下么？具体的 1. Applied Regression Analysis and Multivariable Methods by David Kleinboum 2. Statistics: The Art and Science of Le ...2011-10-9 06:06 - bluerain11 - 计量经济学与统计软件

请教：amos提示潜变量没有residual（error） variable，不知道是
9 个回复 - 5091 次查看 amos提示“学习、人际”那一列潜变量没有residual（error） variable，不知道是怎么回事，请高手指教一下。这是结构图这是运行计算之后弹出的提示框2013-5-17 11:47 - 一米阳光0808 - LISREL、AMOS等结构方程模型分析软件

求助“Data-Driven Bandwidth Selection in Local Polynomial Fitting: Variable Band
1 个回复 - 906 次查看 Fan, J., and Gijbels, I. (1995), “Data-Driven Bandwidth Selection in Local Polynomial Fitting: Variable Bandwidth and Spatial Adaptation,” Journal of the Royal Statistical Society, Ser. B, 57, 371 ...2014-9-27 08:11 - 霞丽东林 - 求助成功区

Guide to Accounting for Variable Interest Entities - 2013 edition
1 个回复 - 1253 次查看 Guide to Accounting for Variable Interest Entities - 2013 edition2014-8-14 09:58 - ualberta - 会计与财务管理

[Lecture Notes]David Draper:Bayesian Multilevel and Latent-variable Modeling
1 个回复 - 967 次查看 [*]Instructor: David Draper (draper@ams.ucsc.edu) [*]Venue: one-day short course sponsored by the School of Mathematics, Statistics and Applied Mathematics at the National University of Ireland, Ga ...2014-6-18 07:26 - Nicolle - winbugs及其他软件专版

Delete variables width more than 500?
3 个回复 - 2354 次查看 Question: I am looking for a syntax to delete variables which have width more than 500. I came across the syntax dict1 =spssaux.VariableDict(variableType='string'). I am not sure if it will be helpf ...2014-6-6 22:49 - ReneeBK - SPSS论坛

Delete String Variables with Width More Than 500?
1 个回复 - 1327 次查看 Hi I am new to SPSS and I am looking for a syntax to delete variables than have width more than 500. I want to delete all string variables themselves that are more than 500 characters. So far I hav ...2014-5-14 01:34 - ReneeBK - SPSS论坛

求助 identifying variables怎么翻译啊
0 个回复 - 773 次查看 driver-identifying variables怎么翻译，驾驶识别变量吗？又是什么意思呢？请教大神指教！！！2014-3-8 22:20 - mybluecorner - 计量经济学与统计软件

jstor Best One-Sided Bounds for Infinitely Divisible Random Variables
1 个回复 - 591 次查看【作者(必填)】Howard G. Tucker 【文题(必填)】Best One-Sided Bounds for Infinitely Divisible Random Variables 【年份(必填)】1961 【全文链接或数据库名称(选填)】http://www.jstor.org/stable/25049 ...2014-2-3 13:41 - 352693585 - 求助成功区

[下载]Latent Variable and Latent Structure Models by George A. Marcoulides
6 个回复 - 2943 次查看 [下载]Latent Variable and Latent Structure Models by George A. Marcoulides, Irini Moustaki by George A. Marcoulides,Irini Moustaki Publisher: Lawrence Erlbaum; illustrated edition edition ( ...2009-9-3 13:01 - 0355lihao - LISREL、AMOS等结构方程模型分析软件

variable id not found，为什么用stata软件做动态面板是出现
4 个回复 - 17081 次查看 2013-12-10 16:53 - kyuu123 - Stata专版

Bootstrapping and the identification of exogenous latent variables within struct
1 个回复 - 776 次查看【作者(必填)】Gregory R. Hancocka & Jonathan Nevittb 【文题(必填)】Bootstrapping and the identification of exogenous latent variables within structural equation models 【年份(必填)】Structural Equ ...2013-10-7 09:41 - Renesmee8989 - 求助成功区

Mediation with categorical variables: Consider ordinal models, empirical Bayes
2 个回复 - 726 次查看【作者(必填)】Gilula, Zvi1,2 【文题(必填)】Mediation with categorical variables: Consider ordinal models, empirical Bayes, and alternatives to R2. 【年份(必填)】2012 【全文链接或数据库名称( ...2013-6-28 09:57 - yuanhaixia - 求助成功区

Data-driven bandwidth selection in local polynomial fitting: variable bandwidth
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