1.1 initial values not feasible tobit是指在tobit模型中,初始值无法满足模型的要求,导致模型无法进行有效估计。 1.2 tobit模型是一种用于处理被观测变量存在截断(censored)或者下限(truncated)的情况的统计模型。在这种模型中,被观测变量的一部分取值无法被观测到,只能观测到其下限或上限。 2.原因 2.1初始值选择不当...
initial values not feasible tobit回顾initial values not feasible tobit回顾 引言概述: 在经济学和统计学中,Tobit模型是一种用于处理有限因变量的回归模型。然而,在实际应用中,我们常常会遇到初始值不可行的问题,即模型的初值无法满足模型的约束条件。本文将回顾Tobit模型中初始值不可行的问题,并探讨解决这一问题的...
1.概述initial values not feasible tobit模型 1.1初始值不可行的tobit模型的基本原理 1.2初始值不可行的tobit模型的应用范围 2. initial values not feasible tobit模型的优点 2.1能够处理截断回归问题 2.2在处理有界数据时更加准确 2.3可以估计截断点 3. initial values not feasible tobit模型的局限性 3.1对数据分布...
st: The error "initial values not feasible, r(1400)" in mvtobit model From: Nimanthika Lokuge <nimslkg@gmail.com> Prev by Date: st: The error "initial values not feasible, r(1400)" in mvtobit model Next by Date: re: Re: st: replicating 2 X 2 data from a paper Previous by...
Dear Stata users, I am using ivtobit with two endogenous variables and I get an error message saying "initial values not feasible r(1400)". I have used the difficult and technique(bfgs) options but I still get the error message. Could anyone provide any advise or suggestions? Does the "...
However, in the remaining years, the DEA efficiency values were below one, indicating inefficient governance. This suggests that the inputs for water environmental governance were not fully translated into improved outputs. From a trend perspective, the years with efficiency values below one were ...