search for: arnoldi

Hi everybody! I'm new to this list and also to the R program. I'd like to know if there is a function able to convert results into Fractional form like my scientific calculator have. For example: > 1/3 [1] 0.3333333 > function_that_return_a_fraction_from_numbers(0.3333333) [1] 1/3 Thanks Mauro -- Man, he is constantly growing and when he is bound by a set pattern of ideas

...full description here: http://www.mathworks.com/access/helpdesk/help/techdoc/ref/eigs.html). This function differs from the standard "eigen" in that it computes a *few* eigenvectors for cases in which your matrix is very large and/or you don't need all the eigenvectors. (It uses the Arnoldi-Lanczos iterative method, as implemented in C in ARPACK). For example, this is the case for classical multidimensional scaling when you only need the first 2 eigenvectors. I feel almost certain that something like this is probably somewhere in R, possibly even as a (hidden) subroutine within a fu...

Hello all, I was wondering if there is a function in R that only computes the eigenvector corresponding to the largest/smallest eigenvalue of an arbitrary real matrix. Thanks Minh -- Living on Earth may be expensive, but it includes an annual free trip around the Sun.