[R] CRAN package NlcOptim query
Hans W Borchers
hwborcher@ @ending from gm@il@com
Wed Dec 12 12:45:06 CET 2018
This is still not complete: `x_than0` is missing.
`Constr_new` is written with a capital 'C'.
And aeq2 is a list of column vectors, not a matrix.
Setting the tolerance to 0 does not seem to be a good idea.
Making aeq2 a matrix and adding `x_than0 <- matrix(c(1, 1))`, then
aeq2 <- as.matrix(aeq2)
x_than0 <- matrix(c(1, 1))
NlcOptim::solnl(X=c(InputTM), objfun=obj_F, A=-Constr_new, B=-x_than0,
lb=c(rep(0,numel)),ub=c(rep(1,numel)), tolX = 0)
will indeed return in the same error, while it runs without error if you
either leave out the inequality constraints or the bounds constraints. So
I guess there may be a bug when the function internally combines these
constraints and the bounds.
You could / should write to the maintainer. I know he is very responsive.
For the moment, you can combine the bounds constraints and the lower and
upper bounds yourself:
myA <- rbind(-Constr_new, diag(-1,numel), diag(1,numel))
myB <- c(-x_than0, rep(0,numel), rep(1,numel))
NlcOptim::solnl(X=c(InputTM), objfun=obj_F, A=myA, B=myB,
returns "constraints are inconsistent, no solution!", but that may be the
case because I don't know your `x_than` value.
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