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Hi, I'm trying to label the horizontal axis of a plot with a symbol that is the equivalent of \mathbb{R} in LaTeX. I've had a look through the help pages for plotmath and for Hershey and haven't found the symbol. Could someone give me a pointer, please? Using R 1.9.1 on Win32. -- SC

...cal symbols for axis labels etc. In order ensure consistency between text and graphics of some paper, I would like to include the calligraphic H (obtained in LaTeX via \mathcal{H}) in several diagrams. Is there any way to do so? Is it in general possible to use further mathematical fonts like \mathbb and \mathbf in R? Best Michael -- -------------------------------------------- Dr. Michael Grottke University of Erlangen-Nuremberg Chair of Statistics and Econometrics Lange Gasse 20, D-90403 Nuernberg, Germany Phone: ++49-911-5302 276 Fax: ++49-911-5302 277 E-mail: Michael.Grottke at...

Hi, I wanted to know if there existed an good implementation in R of the following classical subset Integers : $P_{n,m} = {k_1, \ldots, k_m \in \mathbb{N} : k_1 + \ldots + k_m = n }$ for any integers $m < n$. There is an obvious not optimal code which would be to run through $m$ sums and put a boolean condition to report if the integers respect these condition but it would take $m^n$ steps... Thanks for your answers, David Pham [[alternati...

...\eqn{\mathbf{U}} and \eqn{\mathbf{V}} are < orthogonal, \eqn{\mathbf{V}^\top} means \emph{V transposed}, and < \eqn{\mathbf{D}} is a diagonal matrix with the singular < values \eqn{D_{ii}}{D[i,i]}. Equivalently, \eqn{\mathbf{D} = < \mathbf{U}^\top \mathbf{X V}},\deqn{1 = \int_{\mathbb R}\phi(z)dz} --- > \deqn{ \bold{X = U D V'},} where \eqn{\bold{U}} and \eqn{\bold{V}} are > orthogonal, \eqn{\bold{V'}} means \emph{V transposed}, and > \eqn{\bold{D}} is a diagonal matrix with the singular > values \eqn{D_{ii}}{D[i,i]}. Equivalently, \eqn{\bold{D = U...

...the gradient) the optimization is really sensitive to this "strategy" and fails (quite often). As I'm (really) not an expert in optimization problems, do you know good ways to deal with non-feasible regions? Or do I need to reparametrize my model so that all parameters belong to $\mathbb{R}$ - which should be not so easy... Thanks for your expertise! Best, Mathieu -- Institute of Mathematics Ecole Polytechnique F?d?rale de Lausanne STAT-IMA-FSB-EPFL, Station 8 CH-1015 Lausanne Switzerland http://stat.epfl.ch/ Tel: + 41 (0)21 693 7907

...gt; Sincerely, > Erin Hodgess > mailto: hodgess at gator.uhd.edu > > > > ------------------------------ > > Message: 86 > Date: Fri, 27 Aug 2004 12:05:26 +1200 > From: Paul Murrell <p.murrell at auckland.ac.nz> > Subject: Re: [R] Label using equivalent of \mathbb{R} > To: Deepayan Sarkar <deepayan at stat.wisc.edu> > Cc: r-help at stat.math.ethz.ch, Martin Maechler > <maechler at stat.math.ethz.ch> > Message-ID: <412E7AC6.3060807 at stat.auckland.ac.nz> > Content-Type: text/plain; charset=us-ascii; format=flowed > >...