在Stata中使用merge命令时遇到错误“factor-variable and time-series operators not allowed”通常意味着在合并过程中使用了不被允许的变量类型或操作符。这里有几个步骤可以帮助你解决这个问题: 理解错误信息: “factor-variable and time-series operators not allowed”意味着在合并
Dear Statausers, When I run this command: tsset dtt probit y l.x1 l.x2 mfx I get the following error: factor variables and time-series operators not allowed r(101); What could be the reason for no mfx for lagged variables in time-series? Or am I missing something? Any comments woul...
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prodest log(GYZJZBB) method(lp) free log(L) log(L2) proxy log(M) state log(k) valueadded acf id(id) t(year) reps(50) predict lpacf, resid 可这样依然会提示“factor-variable and time-series operators not allowed”。 你可能还会想,咦,是括号不对吧,再加上括号... 这样继续肝下去身体还...
2.在另一个模型中,我想用的自变量是滞后一期值L.X,但是当我输入sgmediation Y, mv(Z) iv( L.X)时候,输出结果提示:factor-variable and time-series operators not allowed(error in option iv( )),这种情况怎么办呢? 1.几个小时前一个学术群里面刚好在讨论这个中介效应模型,我不想回答这个中介效应检验的问...
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They conclude that “time series methods alone are not capable of producing evidence of nonlinearity in the drift.” Controversies also exist on the form of the diffusion σ(·). [29] show that in a single factor model of the short rate, γ roughly equals to 1.5 and all the models with...
A control operation is a series of events or actions occurring within system hardware and software to give a specific result. A real-time control system is a system in which the correctness of a result depends not only on its logical correctness but also on the time interval in which the ...
In the past, migrating from an old PL/I compiler to another old PL/I compiler was not that difficult. With the introduction of the new Enterprise PL/I compiler, the migration process might be much more complicated than before. Migrating to the new Enterprise PL/I compiler must be a well...
Krüger, Jens, and Rüdiger Westermann. 2003. "Linear Algebra Operators for GPU Implementation of Numerical Algorithms." InACM Transactions on Graphics (Proceedings of SIGGRAPH 2003)22(3), pp. 908–916. Lefohn, A. E., J. M. Kniss, C. D. Hansen, and R. T. W...