Sometimes the term "adjoint matrix" refers to the "matrix of cofactors", that is, the matrix of signed determinants of n-1 x n-1 dimensional submatrices. This is just the inverse multiplied by the determinant. As with both the inverse and determinant, if this is part of a larger computation there are often better ways to solve the problem avoiding explicit computation of determinants or inverses.
Reid Huntsinger Peter Dalgaard wrote: >"Jessica M. Maia" <[EMAIL PROTECTED]> writes: > > > >>Hi there, >> >>I'm new to R and despite searching today, I can't >>find a function which will compute the adjoint of >>a matrix A. Does this adjoint function exist in R? >> >> > >I don't think so, but the adjoint matrix is also known as the >conjugate transpose and we do have t() and Conj(). (If your matrix is >real, t() will do.) > > > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
