Re: [R] MCO: Timing using model.matrix method

2009-05-01 Thread hadley wickham
> My issue is self-evident:  using this method resulted in a 30 fold > increase in time.  My question is why?  If I time the individual > components separately, nothing is unusual.  My hunch is the > "interaction" between the model.matrix and nsga2 methods. > > Any ideas on how to speed this proces

[R] MCO: Timing using model.matrix method

2009-05-01 Thread Corey Dow-Hygelund
Hi fellow users of R, My research requires the simultaneous optimization of several response functions.  Therefore, I am using the nsga2 method in the mco package, which works beautifully. However, I am running into a significant timing difference that is causing me grief.  The details: Say I ha

[R] MCO: Timing using model.matrix method

2009-04-27 Thread Corey Dow-Hygelund
Hi fellow users of R, My research requires the simultaneous optimization of several response functions. Therefore, I am using the nsga2 method in the mco package, which works beautifully. However, I am running into a significant timing difference that is causing me grief. The details: Say I ha