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Hello,I tried installing optimx and got a confirmation that it was installed. However, anytime I call for it, I received the following error message > library("optimx", lib.loc="~/R/win-library/3.1")Error in loadNamespace(j <- i[[1L...
Hello,I am estimating a system of nonlinear equation where I need to stack my vector of y. I have data of about 6000units. I tried using the rbind but instead of having a vector of 1 by 18000, it...
Thank you Jeff for your response. My y1, y2, y3 are actually 3 columns in the data so I cannot use the c() function to concatenate them. I am confusing the "columns" with vectors. I actually meant columns. Any help...
Hello,I am estimating a system of nonlinear GMM. the following are my objective function, the gradient function and the optimx code for the optimization. ?I actually worked out the gradient and hessian by hand before inputing the code into...
Thank you. your suggestions all worked. Best Regards? On Thursday, 30 April 2015, 11:52, Bert Gunter <gunter.berton at gene.com> wrote: ... and if this is what is wanted, somewhat cleaner and more generalizable for programming would be: do...
Hello,I am estimating a system of 3 equations using a nonlinear GMM.The first and second equations consists of a linear part and a nonlinear part. The nonlinear parts is specified as a logit and the logit as a...
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