Optimizing variables represented in a matrix
If you want an helpful answer, you must describe your real problem MUCH better! This is way too confused. Kjetil
On Thu, May 31, 2012 at 7:37 AM, <nataraj at orchidpharma.com> wrote:
Dear R-list members, I have a matrix with non-numeric variables in it and I have to optimize the variables of the matrix in a formula using optim routine of the stats4 package. I know the matrix can only take numeric data and so I would like to ?know how to store non-numeric variables inside a matrix. Say for example: The 3X3 matrix is ? ? 0.05V1+V2 ? ?0.31V1 ? ? ? ?0.05V1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0.31V1 ? ? ? 0.3V1+V2 ? ? ?0.5V1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?0.05V1 ? ? ? 0.5V1 ? ? ? ? 0.1V1+V2 The matrix is only for an example and the real matrix that I want to use is a 15X15 matrix ,here I would like to optimize the values of V1 and V2 using a formula. Could you please help me how to go about to represent the matrix in R. Thanks in advance! B.Nataraj
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