[R] Rglpk

[Peter Ehlers]

On 2010-06-09 5:11, Kaveh Vakili wrote:
>
> Hi list,
>
>
> in the Rglpk_solve_LP function (::Rglpk),
> on line 26, the function calls a function
> as.glp_bounds() that i cannot access.
>
> i'm trying to alter the Rglpk_solve_LP function
> to add a line to retrieve column/row dual values.
> everytime i change the slightest line of code inside
> Rglpk_solve_LP() [to even add a print]
> i get a
> ': could not find function "as.glp_bounds"'
>
> What's the catch here ?
>

No catch: as.glp_bounds() is buried in namespace:Rglpk.
Your modified function is presumably in the global
environment. This should work:

Let's say your modified function is myfun().
After you source myfun, set its environment with

  environment(myfun) <- environment(Rglpk_solve_LP)

-Peter Ehlers