Dr. Varadhan:
Perfect. Package Rsolnp is exactly what I was looking for. Thank you very
much.
r/
Greg
-Original Message-
>From: Ravi Varadhan
>Sent: Oct 17, 2012 10:24 AM
>To: "'boyla...@earthlink.net'"
>Cc: "r-help@r-project.org"
You have nonlinear constraints on the parameters. Take a look at constrained
optimization algorithms in packages "alabama" or "Rsolnp" that can handle
non-linearly constrained optimization problems.
Ravi
Ravi Varadhan, Ph.D.
Assistant Professor
The Center on Aging and Health
Division of Geriat
Good afternoon,
In the code below, I have a set of functions (m1,m2,m3,s1,s2, and s3) which
represent response surface designs for the mean and variance for three response
variables, followed by an objective function that uses the "Big M" method to
minimize variance (that is, push s1, s2, and
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