Re: [R] linear programming in R | limits to what it can do, or my mistake?

On 2024/1/30 20:00, Martin Becker wrote: Apart from the fact that the statement "such that t1+t2+t3+t4=2970 (as it must)" is not correct, the LP can be implemented as follows: I was confused by "such that t1+t2+t3+t4=2970 (as it must)", otherwise, I also get the same solution.

Re: [R] linear programming in R | limits to what it can do, or my mistake?

Apart from the fact that the statement "such that t1+t2+t3+t4=2970 (as it must)" is not correct, the LP can be implemented as follows: library(lpSolve) LHS <- rbind( c(0,0,0,0, 1, 0, 0,0), c(1,0,0,0,-1, 1, 0,0), c(0,1,0,0, 0,-1, 1,0), c(0,0,1,0, 0, 0,-1,1), cbind(-diag(4),diag(4)),

[R] linear programming in R | limits to what it can do, or my mistake?

Question for 'experts' in LP using R (using the lpSolve package, say) -- which does not apply to me for the sort of problem I describe below. I've run any number of LP's using lpSolve in R, but all of them to date have objective and constraint functions that both contain the same variables.