[R] adding overall constraint in optim()

[Ravi Varadhan]

Hi,

You can use the projectLinear argument in BB::spg to optimize with linear equality/inequality constraints.



Here is how you implement the constraint that all parameters sum to 1.



require(BB)

spg(par=p0, fn=myFn, project="projectLinear", projectArgs=list(A=matrix(1, 1, length(p0)), b=1, meq=1))



Hope this is helpful,

Ravi


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