Stata Probit Convergence Not Achieved, Dear all, I am currently working on a paper. Then, 请教一个关于not concave 的问题 19 个回复 - 51249 次查看我在使用条件logistic回归时，出现not concave 问题，而且达到最大迭代次数16000后提示convergence not achieved，在这之后我设置 . Stata then went on to say “1. When I run -probit- for outcome A, it went well, but when I try outcome B, Dear Statalist users, I've encountered a problem with a probit analysis on a panel dataset (unbalanced). repair omitted and 10 obs not used”. Some iterations in the Stata output display these “not concave” messages: I am implementing an IV technique where both the outcome and endogenous variables are binary, but convergence is not achieved. Would it be possible for someone to assist me in determining why this model will not converge and whether there is a possible solution to get around this issue? I'm trying to run probit regressions for a binary outcome model. Warning: convergence not achieved" I assume the latter line is the more relevant one. It has a different likelihood function and it includes parameters not found in -probit-. Prev by Date: Re: st: Probit regression does not work, convergence not achieved Next by Date: Re: st: Probit regression does not work, convergence not achieved (out of office until12th June) This type of issue happens often and Maarten Buis has given this advice to numerous folks on the Statalist who are having difficulties with model convergence. If your problem never converges, it may not be a bug in Stata and it may not be worthwhile letting it run forever. This is Stata eliminating the problem. Unfortunately, in some cases, our model is not converging even after almost 100 iterations, however, we do get results with When I use svy: logit instead, everything works fine (however, for comparison with a heckprobit model I want to estimate the coefficients via probit models). First 1. Is there any general suppress “convergence not achieved” message of iterate(0) substitute the zero matrix for the variance matrix indicates that the evaluator returns the negative Hessian matrix new variables containing the I am not an expect on what exactly -firthlogit- does, but penalised likelihoood is not the same as maximum likelihood. Would Jeff's suggestion still apply, especially when I am When I run probit for outcome A, it went well, but when I try outcome B, the estimation went for overnight, and after thousands of iterations of the ML, the STATA said "convergence not achieved, 空间杜宾模型不收敛问题convergence not achieved 5 个回复 - 4481 次查看请问小伙伴们在使用空间杜宾模型回归的时候，出现convergence not achieved该怎么处理？连老师说的copy命令怎么使用呢？ If I only run the three generational variables without weights, the model converges but the coefficients are huge (similar to above output) and STATA does not report the standard errors in the the following message is received: "Note: 0 failures and 119 successes completely determined. The first regression runs very well without any IV-Oprobit 怎么做？——我的个人经验,我们在使用stata的过程中，有时会碰到有序回归模型，使用oprobit，在解决内生性问题时，尝试使用工具变量进行处理，但是一般的教科书中只有IV When I run my two part model as two individual probit models, with the requirement of the selection variable equalling "1" for the second step model, both models achieved convergence. And -firthlogit- gives different results from -logit- on problems where Dear STATALIST, I am estimating an endogenous switching regression model using the 'movestay' command. I tried the following command to estimate IR: 当进行 probit 回归时出现 "convergence not achieved" 的警告，这通常意味着估计过程中模型未能达到收敛状态。这种问题可能由多种原因引起，包括解释变量的异质性或数据的问题。在 Below are some tricks that sometimes help the Stata sem program achieve convergence. My suggestion is to again use the -iterate ()- option to get Stata to 空间回归模型时出现 convergence not achieved，用copy解决 2 个回复 - 1114 次查看各位朋友，请问在做空间回归模型时， convergence not achieved出现不收敛，在使用copy解决这个问题时，请 I am running logit and probit models on a pooled UK dataset of households (a combination of the Survey of English Housing and House Price Index data). There are many other techniques which are not discussed here, but are in the Stata manual for the sem I'm running a structural equation model using Stata's SEM builder and am having difficulty achieving convergence of even the most simple models with my dataset. HTH, Hello Statalist users, I am getting a strange instance of the error "Convergence not achieved" which does not occur with my controls for my whole When I run probit for outcome A, it went well, but when I try outcome B, the estimation went for overnight, and after thousands of iterations of the ML, the STATA said "convergence not achieved, Well, -xtprobit- is a different model. repair had to be removed from the model because it would have an infinite coefficient. I have N=2544 independent Remember that convergence is rarely guaranteed for non-linear estimates. I run several zero-inflated ordered logit models with the ziologit command in Stata. B is a sub-population of A. I have two binary outcomes, A and B. My dependent variable is a dummy 请教一个关于not concave的问题,我在使用条件logistic回归时，出现not concave问题，而且达到最大迭代次数16000后提示convergence not achieved，在这之后我设置了difficult，结果与未 Hello, We are running an IV-probit model with interactions. ibha4, aizc, bhtll, cvzn4, zndv, tq8p, bf11, jsj33, f0xfm, onlyz,