On Mon, 28 Aug 2006, Jessica M. Maia wrote:

> Sorry but I wasn't very clear in my previous message.
>
> I want to compute the adjoint of a real matrix A,
> which is the transpose of the cofactor matrix of A.
>
> There is an example here: http://www.mathwords.com/a/adjoint.htm
>
> Does R have a function which will compute the cofactor of
> matrix A or the adjoint of a real matrix A?

If that's what you mean by adjoint, then the adjoint is the inverse 
multiplied by the determinant.

    adjoint<-function(A) det(A)*solve(A)

        -thomas

Thomas Lumley                   Assoc. Professor, Biostatistics
[EMAIL PROTECTED]       University of Washington, Seattle

______________________________________________
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.

Reply via email to