[R] general inverse solver?

[Doran, Harold]

Carl:

I don't know if this is helpful or not, but have you seen the functions
backsolve and forwardsolve for solving triangular systems? 

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Carl Witthoft
> Sent: Sunday, February 08, 2009 3:12 PM
> To: r-help at r-project.org
> Subject: [R] general inverse solver?
> 
> Just wondering if there's an R package which does tricks 
> similar to what TK!Solver does.
> 
> TK!Solver, for those not lucky enough to have found it, 
> basically allows one to define a bunch of equations, assign 
> values to an arbitrary subset of the variables, from which it 
> calculates (either directly when possible or back-solving 
> when not) the values of the other variable(s).
> 
> 
> thanks
> Carl
> 
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