similar to: how to dev.off() all devices

Hello everyone, Could you please help me find out if R supports matrixes inside matrixes? This is what I would like to do I have an area map of humidity per km. I would like at every cell to keep also information about the height of this area, the current temperature etc. Is something like that supported? I would like to thank you in advance for your help Best Regards Alex

Hello everyone, I would like to find out if there are already implemented function for legendre polynomials. I tried google but returns nothing. How do you suggest me to search for that? Regards Alex [[alternative HTML version deleted]]

Hello I have some strange output from R and I try to understand how R works. Could you please help me with that? temp <- rbind (c(10,1),c(99,98)) > temp [,1] [,2] [1,] 10 1 [2,] 99 98 > dist(temp) 1 2 131.6435 > sqrt(dist(temp)) 1 2 11.47360 so far so good. until the nex line: when I try to do what i did before but adding the 1/(what I did

Hello everyone, I need some help with lists inside lists (a good way to emulate a struct)\ Assume that there is a small list called fred: fred <- list(happy = 1:10, name = "squash") and a big list called bigfred that includes fred list 5 times bigfred <- rep(fred,5) Is it possible somehow to index all these sublists(fred) inside bigfred with a more direct way like this:

Dear all, I am using ggplot with geom_tile to print as an image a matrix  I have. My matrix is a squared one of 512*512 cells.  The code that does that is written below > print(v + geom_tile(aes(fill=dB))+ opts(axis.text.x=theme_text(size=20),axis.text.y=theme_text(size=20), axis.title.x=theme_text(size=25) , axis.title.y=theme_text(size=25), legend.title=theme_text(size=25,hjust=-0.4) ,

Dear list, I have the following example, from which I am hoping to retrieve numeric values of the factor levels (that is, without the brackets): > > x <- seq(1, 15, length=100) > y <- sin(x) > > my.cuts <- cut(which(abs(y) < 1e-1), 3) > levels(my.cuts) hist() does not suit me for this, as it does not necessarily respect the number of breaks. getAnywhere

Dear R users, I'm trying to plot 45x8 graphs on the same pdf / device for the sake of visual comparison. par(mfcol=c(45,8)) par(mai=c(0,0,0,0)) In ?title, I can see there are cex and font settings: I set cex = 0.01 and font = 1: it is still very large, and then I tried setting font < 1, e.g. font = 0.5, Then I get an error: Error in title(paste(Ppercent, "% ",

Hello everyone. It is time to start writing more and more function and I want to read in a good reference -book ( I can buy one, especially if it is second handed :P) -online tutorial -any other guide -How functions really work in R -How to write bigger R programs -If there are local function variables. -Global ones and how to treat them -How to include function files in order to keep your all

Dear all, I have a function that for a variable number of inputs plots them to the same plot I am doing this quite simply by plot(seq(from=start, to=stop, length.out=np), datalist[[1]]$dataset                                                                  xlim=c(start, stop), ylim=c(0, 1), type="l")                                                                                      

in a simple plot. When i do plot is it possible to zoom in or out or this is not possible at all? Best Regards Alex [[alternative HTML version deleted]]

Dear list, I'd like to get rid off a couple of warnings that have appeared in checking my package on CRAN (I did not find them on my local machine before submission). What puzzles me is that different platforms return different warnings, only one of which I recognise as my obvious mistake. The check results are at http://cran.r-project.org/web/checks/check_results_planar.html

Hello when my code executes I receive the message that were some warnings. I want to catch warning messages at run time so to print some local variables and try to understand why this warning happens. I searched on internet and I tried withCallingHandlers( which seems to work but as I used Rkward the result is awful. I get a prompt to copy paste a value only while at the same time my background

Hi! On Linux I try to produce pdf graphs with computer modern fonts so that they look nice in LaTeX documents. I run for example: ------ CM <- Type1Font( "CM", c("/usr/share/texmf-texlive/fonts/afm/public/cm-lgc/fcmr8a.afm", "/usr/share/texmf-texlive/fonts/afm/public/cm-lgc/fcmb8a.afm", "/usr/share/texmf-texlive/fonts/afm/public/cm-lgc/fcmri8a.afm",

Dear list useRs, I have to generate a random set of coordinates (x,y) in [-1 ; 1]^2 for say, N points. At each of these points is drawn a circle (later on, an ellipse) of random size, as in: > N <- 100 > > positions <- matrix(rnorm(2 * N, mean = 0 , sd= 0.5), nrow=N) > sizes<-rnorm(N, mean = 0 , sd= 1) > plot(positions,type="p",cex=sizes) My problem is to

`outer` (and related functions like kronecker) require that their functional argument operate elementwise on arrays. This means for example that outer( 1:2, 3:4, list) or outer(1:2,3:4,function(a,b){1}) gives an error. Is there a version of `outer`/`kronecker`/etc. that takes arbitrary functions and does its own elementwise mapping? In the first example above, I'd expect the

Dear list, I have been trying to run the function "qvalue" under the package qvalue on a vector with about 20 million values. > asso_p.qvalue<-qvalue(asso_p.vector) Error: cannot allocate vector of size 156513 Kb > sessionInfo() Version 2.3.1 (2006-06-01) i686-pc-linux-gnu attached base packages: [1] "methods" "stats" "graphics"

Hello everyone. I would like to find the sample covariance matrix using R. So far I read on the wikipedia what a sample_covariance is http://en.wikipedia.org/wiki/Sample_covariance according to wikipedia one vector is enough to calculate the sample covariance matrix. In R I tried cov(myvector) and I get the reply that I need to pass either two argument or one matrix with x,y values . How can I

Dear all, I would like to print a few values with less digits than the default. How I can reduce how many digits are printed ?(warning: not the real integer resolution but what is shown in screen) Best Regards Alex

Dear all, I am using my code the vgram.matrix of packets fields. I have around 500 matrices that I need to pass inside that function and then plot those results. Even though my system has 16 cores is quite clear that I am only using one of those. Would it be able to skip these 500 "tasks" to the 16 cores, with each processor having around 4 matrices to process? What would you suggest

Dear all, I would like to ask you if R can produce any kind of sound. It would be useful when code execution stops R to notify me by playing some sound. Is that possible in R? I would like to thank you in advance for your help Best Regards Alex