[R-SIG-Finance] problem with fPortfolio

Brian G. Peterson brian at braverock.com
Fri Jul 20 16:58:31 CEST 2007

Julio Ferreira wrote:
> While trying to use several functions (e.g.  assetsMeanCov(x,
> method="cov") ) from fPortfolio package, I get error messages stating
> that it is  "unable to find function isPositiveDefinite". I checked and
> apparently all required packages (dependencies) were installed and
> loaded. Looking at the documentations available I was unable to find any
> reference to this function. Has anyone get this problem before? How to
> solve it?

Have you tried calling update.packages() ?


   - Brian

More information about the R-SIG-Finance mailing list