search for: praha1

Hello I am trying to compare a vector with a Matrix's rows.The vector has the same length as the number of columns of the matrix, and I would like to find the row numbers where the matrix's row us the same as the given vector. What I am doing at the moment is using apply as follows: apply(Matrix,1,function(x)all(x%in%LHS)) but this isn't too fast actually. I would like to know if

List members, Via searches I've seen similar discussion of this topic but have not seen resolution of the particular issue I am experiencing. If my search on this topic failed, I apologize for the redundancy. I am attempting to generate random covariance matrices but would like the corresponding correlations to be uniformly distributed between -1 and 1. The approach I have been using is:

...hese functions, hopefully with the associated standard errors? > > Thank you for your time and help > > Best regards > Nelson Martins > > > > ------------------------------ > > Message: 7 > Date: Sun, 16 Jan 2011 10:59:27 +0100 > From: Petr Savicky <savicky@praha1.ff.cuni.cz> > To: r-help@r-project.org > Subject: Re: [R] how to add a derived column to a data frame? > Message-ID: <20110116095927.GA6767@praha1.ff.cuni.cz> > Content-Type: text/plain; charset=us-ascii > > On Sun, Jan 16, 2011 at 03:01:49PM +0800, r-help wrote: > &gt...

...its not too much to ask: I will then sample it 4 individuals 500 times , 5 individuals etc etc and store these _ i can always do these separately if its asking too much! Thanks, Sam ------------------------------ Message: 5 Date: Fri, 21 Jan 2011 10:10:17 +0100 From: Petr Savicky <savicky@praha1.ff.cuni.cz> To: r-help@r-project.org Subject: Re: [R] auc function Message-ID: <20110121091017.GB28150@praha1.ff.cuni.cz> Content-Type: text/plain; charset=us-ascii On Thu, Jan 20, 2011 at 03:14:01PM -0800, Changbin Du wrote: > ROCR > I appreciate this information, which is new for...