R help - Jul 2010 - question about lpSolve package

Hello R users,

I have two quick questions while using "lpSolve" package for linear
programming. (1) the result contains both characters and numbers, e.g., Success:
the objective function is 40.5, but I only need the number, can I only store the
number? (2) How to set boundaries for variables? e.g., all variable are
positive.

Thanks a lot!

Xiaoxi 

 		 	   		  
_________________________________________________________________
Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox.

N:WL:en-US:WM_HMP:042010_1
	[[alternative HTML version deleted]]

On Jul 6, 2010, at 3:32 PM, Xiaoxi Gao wrote:
>
> Hello R users,
>
> I have two quick questions while using "lpSolve" package for
linear
> programming. (1) the result contains both characters and numbers,  
> e.g., Success: the objective function is 40.5, but I only need the  
> number, can I only store the number?
?lp
?lp.object   # or just use str()
> (2) How to set boundaries for variables? e.g., all variable are  
> positive.
It appears you need to take time to re-read the help page and work  
through the examples.
>
-- 

David Winsemius, MD
West Hartford, CT