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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