similar to: importing images

Hello, I am plotting a 3D function using persp and I would like to use greek symbols in the axes labels. I have found examples like this one on the web: plot(0,0,xlab=expression(kappa[lambda]),ylab=substitute(paste(phi,"=",true,sigma),list(true=5))) this works well with plot but not with persp: with the command persp(M,theta = -20,phi =

hello, I have got some trouble with R functions nlm(), nls() or optim() : I would like to fit 3 parameters which must stay in a precise interval. For exemple with nlm() : fn<-function(p) sum((dN-estdata(p[1],p[2],p[3]))^2) out<-nlm(fn, p=c(4, 17, 5), hessian=TRUE,print.level=2) with estdata() a function which returns value to fit with dN (observed data vactor) My problem is that only

Hello R users, I found the odfWeave package to create an odf document. It seems to be a very nice tool. So i tried to used it to create a report with multiple plot: I create an odt file with some code inside: I connect to a mysql database I get a list of projects foreach project I would like to make a plot (a map exactly) then in a R console I use the odfweave (inFile, outFile) function.

I am looking for a function in R that is equivalent to the function "peaks" in Splus. This function gives the local maxima of a vector. I do not find it using the help and I 'm not sure it exits in R. Could someone help me ? Thanks, Herve Cardot -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hello everybody The current limit (we''re working with Xen 4.0.1 on a debian squeeze server) for the domU memory is 256 Gb Is it possible to do something to get domUs with more than that ? Do we have to upgrade Xen hypervisor for that purpose or is a kernel recompilation sufficient ? We would like to have a vm with 768 Gb memory... Thanks for your kind answers ! -- Emmanuel

Hello, I am using the odfWeave packages; I draw a table using the function odfTable: partCols <- gsub(?\\.?, ? ?, names(partenaires)) odfTable(partenaires, useRowNames = FALSE, colnames=partCols) it's working as I have a table in my output file. I would like to know how to change the background color for the header cells. I assuming i have to use tableStyles, but I don't understand

I found a problem with scale function, while using center=FALSE and scale=TRUE: all column are not divided by standard error, but divided by sqrt (1/(n-1) sum Xi^2 ) Example: > l<- c(1,2,3) > scale(l,F,T) [,1] [1,] 0.3779645 [2,] 0.7559289 [3,] 1.1338934 attr(,"scaled:scale") [1] 2.645751 2.645751 = sqrt( 1/2 * (1+4+9) ) Antoine Lucas & Aymeric Labourdette

Full_Name: Antoine Lucas Version: 1.7.0 (2003-04-16) OS: Linux Submission from: (NULL) (193.51.197.253) I have a problem using read.table: If in a dataframe, we have a string containing a dot, write.table will not write any file while using option "dec=','". Example > m <- "1.5" > write.table(m,dec=',') Error in if (n%%nrowv == 0) value <-

I'm probably misunderstanding something in "Writing R Extensions" version 1.0.0. In the chapter on the R API, section 4.7, it is stated that the functions listed in R_ext/Linpack.h are available to users' Fortran code. I am developing a developing a library of ode solvers, based on lsoda and ddassl, and which in turn call some routines from linpack and double precision blas. I

I have re-labeled tick marks on the x axis. The problem is that by using axes=FALSE, the axes disappears and when they are called back using axis(side=1)..etc. the axis on sides 1 and 2 do not meet at the bottom left corner of the graph. I would also like to have the 3rd and 4th axes in there as well, all meeting in their respective corners. par(mfrow=c(1,2)) gut<-c("Full",

What is the best kernel to run? is it better to run 3.4.4 or one from xen git? _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users

Hi ! I need a plot for data extending over several orders of magnitude on the y axis. The following command generates a nice looking semi-log plot for my data: plot(x,y,log="y",type="l",lty=3, ylim=c(0.01,2),yaxp=c(0.01,1,1),las=1) I would appreciate having also minor tick marks in-between the 3 major ticks obtained with the above command. The "minor.tick" function

Dear all, I am a SAS user, who's trying R. I am a little bit lost for graphics. What is the simplest way for plotting y as a function of x with one symbol (line or dot) for each level of a class variable z (for SAS langage= plot x*y=z). Can I add vertical bars for standard deviation stored in a separate variable (say ystd). Finally, is it possible to do all this with xyplot function

Dear all, Does any know how to solve PDE with R? The archive list refers to the use of ODE if PDE are parabolic. I am not a mathematician and this does not mean anything for me! help would be very appreciated. Many thanks -- ___________________________________________________ Christophe NGUYEN UMR 1220 INRA-ENITAB Transfert sol-plante et cycle des ?l?ments min?raux dans les ?cosyst?mes

Dear Colleagues, I have x, y data (pollen and seed dispersal from oaks !) that I would like to fit with a function which look like this: p(a,b,x,y)=b/(2*pi*a?gamma(2/b))*exp(-(square_root(x?+y?)/a)power(b)) I am looking for a and b values that fit my data at best. Can someone give me hints to perform such an analysis with R ? Thanks a lot Sophie Sophie Gerber

Does anyone know of a cross browser solution to print a page/url after a user clicks a button? Currently, I''m using a "hidden" iframe to do my bidding. But from my experience, IE requires that the iframe''s src attribute be set initially to the url, in order for the page to open properly. I wasn''t able to add the iframe to the page dynamically, either. So

I am not yet a R user but I will be soon. I am looking for the R command and syntax to compute the roots of Bessel function i.e. computing the z values that lead to Jnu(z)=0 where J is a Bessel function or order nu. May You help me ? thanks in advance. Dr Catherine COUTAND Institut National de la Recherche Agronomique (INRA) umr Physiologie Int?grative de l'Arbre Fruitier et Forestier

Hello My question is the following. I have tried to find a similar subject in archives but not found (perhaps bad search!) and I tried R-help and I was advised that R-devel would perhaps better for my question So I wonder if it is possible to create a dll from a R code to use it in another language/program. Indeed, one of my colleague wrote a R code combining some R functions to create a

Hi all, By default, the heatmap function gives an image with a dendrogram added to the left side and to the top. Is it possible to only add the dendrogram to the left side and let the order of the columns unchanged ? I tried heatmap(mat, col=rbg,Rowv=res.hclust$order,Colv=1:dim(mat)[[2]]). In this case, the order of the columns are unchanged but a dendrogram is added to the top. How can I

Dear developer, in my version of R (2.4.0) as weel as in a more recent version (2.6.0) on different computers, we found this problem : > a<-(58/40-1) > a [1] 0.45 > b<-(18/40) > b [1] 0.45 > a<b [1] TRUE > a==b [1] FALSE > Something seems wrong here. but if we do > c<-0.45 > d<-0.45 > c<d [1] FALSE then everything is ok. If we use 59