[R] Solving systems of non-linear equations in R

[yutaka hamaoka]

I believe
library(systemfit)
has nlsytemfit function.

Yh


T Petersen wrote:
> I'm about to write my thesis in economics and will need to setup and 
> solve a system of non-linear equations. At our university we usually use 
> GAMS for this, and though GAMS is a fine program, it bugs me a that I 
> won't be able to run my code after I finish my thesis without buying a 
> license for the program(about $3.500 :-(( )
> 
> So I've looked around for NL-stuff for R, but I can't find anything. The 
> closest thing appears to be optim(), but it doesn't seem to allow 
> constraints(as in fn = constant) or equations systems. So, anyone knows 
> if there is a method in R that you can use for this purpose?
> 
> regards
> 
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