similar to: Plotting a cloud/fog of variable density in rgl

Hi all, I recently wrote some code to store a number of polynomial models in a list and return this list. The model is returned fine, but when I make a subsequent call to predict(), I have an error. The code for polyModel selection is listed at the end of the email. Here is an example of the error: > poly.fit <- polyModelSelection(x,y,10,F) > for (d in 1:4) { + lm.model <-

Can anyone help me resolve this? A part of the R function looks like this: print(is.loaded('merge_xtabs_patterns_file')) print(is.loaded('merge_xtabs_patterns_file_')) .Fortran('merge_xtabs_patterns_file_',ydim[1],ydim[2],x=as.integer(as.matrix(y)),na=as.integer(c), maxD=as.integer(maxD),lrowmem=length(rowmem),rowmem=as.integer(rowmem),

Hi Louis, It's simple to run a r script from the excel spreadsheet. Just write your code, source("C:\\Quantil Aplicativos\\Genercauca\\BackwardSelectionNC.r"), into a cell of a workingsheet. Then right-click the cell and select "run code" in the pop-up menu. Hope this will help you. Best, Bernard -----????----- ???: r-help-bounces at r-project.org [mailto:r-help-bounces

Dear folks, I have created a plot on RGL device :   x = 1:6 y = seq(-12, 5, by=1) z = matrix(0, length(y), length(x)) z[13,3] = 1; z[13,4] = 1.011765 surface3d(x, y, t(z), col=rainbow(1000)) grid3d(c("x-", "y-", "z"))   Now I want to draw 2 lines along x=3 & x=4, over the surface (with different colour). Could somebody help me how to draw that?   Thanks,

I'd like to use rgl.surface (or some other function if more appropriate) to create a horizontal and vertical transparent grey slice (plane) running through both the x and y origins and extending across the z axis, i.e. the 3-d equivalent of the normal 2-d coordinate axes we are all familiar with. The examples for rgl.surface are a bit more complex than what I need and I am having trouble

Hi There, I'm attempting to plot 10 values on a three-dimensional PCA with text labels next to each point. While i have no trouble doing this on 2D plots using the 'text' or 'textxy' function, I cannot find a function to do this on a 3D plot. I am using princomp for my PCA: >PCA<-princomp(eucdata, cor=TRUE) >PCA$scores [,1:3] # the three principal components i

Hi R users and experts, I am interested in learning more about the use of 3D plots. Specifically, I want to add points and lines to a surface plot. And get the axes and labels plotted also. Here is what I have tried with an example data set : library(rgl) vol2 <- 2*volcano # Exaggerate the relief library(reshape) mvol2 <- melt(vol2) str(mvol2) # First, persp and persp3d plots do not succeed

Hi all, I've got some functioning code that I've literally taken hours to write. My 'R' coding is getting better...it used to take days :) I know I've done a poor job of optimizing the code. In addition, I'm missing an important step and don't know where to put it. So, three questions: 1) I'd like the resulting output to be sorted on distance (ascending) and

Hi all, Can you help me change my Kennard-Stone algorithm to faster one? [The original code can run fast in matlab, but when I change matlab code to R code, it is so slow.] Since my code so crude and too many loops (changed from matlab code), it is too slow. I hope that you can help to improve the performance. Thanks. kevin

# Is this a bug or something I don't understand? spline(date, stor, n=52, xmin=mind, xmax=maxd) # gives length(x) of 53 ????, but y has the expected length of 52 # Shouldn't they be the same length? From help (spline): # spline returns a list containing components x and y which give the # ordinates where interpolation took place and the interpolated values # xmin and xmax are inside

Dear users, I'm trying to produce a 3d bar plot but the x and y dimensions have categorical data -- so I only want 3 points on each axis. So I try: require(scatterplot3d) mymat<-data.frame( x=c(1,1,1,2,2,2,3,3,3), y=c(1,2,3,1,2,3,1,2,3), z=c(1,2,3,4,5,6,7,8,9)) scatterplot3d(mymat, type="h", lwd=5, pch=" ", xlab="xlabel",

Hello, I'd like to contribute a page on using FOG (FOG is a Linux-based, free and open source computer imaging solution for Windows XP, Vista and 7 that ties together a few open-source tools with a php-based web interface. http://www.fogproject.org/) running on CentOS. Currently have 3 FOG servers deployed on CentOS covering a large workload using an existing Linux DHCP setup in a large

Hi, I'm experiencing some strange problems with SAMBA. I configured it, it's working but after a while the strangest thing happens. All the Windows machines in the network are unable to see each other in Network neighborhood. If I try to go from a Windows machine to \\OtherMachine\Share it works fine but I can not see anything in the network neighborhood. I'm running Red Hat Linux 6.1

Hi, I am applying the following code to map pca loadings onto a 3d grid, my problem is this - the output only plots the spheres in the requested color (in this case "red") for the first argument. The sphere from the second argument appear as flat dark circles. Also the text3d() command only seems to work for a couple of the positions, with no text added in most cases. Could anyone offer

Hello I'm plotting some data using matplot with a logarithmic scale on the y-axis. This is the call to matplot I'm using: matplot(turns, distances, type = "l", log = "y", lty = "solid", ylab = "", xlab = "Time steps", col = c("black")) The values for the 'distances' vector are always between 0 and 1. The

Hi, I am trying to install fog which is required for cloud provisioner. > gem install fog -v 0.7.2 I am getting the following error Building native extensions. This could take a while... ................ ERROR: Error installing fog: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb creating Makefile make

I have a general style question about R coding. Suppose I'm writing a function (foo1) that calls other functions (foo2, foo3, ...) which have complicated argument lists (e.g. optim(), plot()), _and_ I may be calling several different functions in the body of foo1. Since foo2 and foo3 have different sets of arguments, I can't just use "..." ; I did write some code a while ago

Linux 3.11 added respective support, so I think we should follow suit. 1: xen: add LZ4 decompression support 2: libxc: add LZ4 decompression support Signed-off-by: Jan Beulich <jbeulich@suse.com>

Hello everyone, My problem is better explained with an example: > x=data.frame(a=1:4,b=1:4,c=rnorm(4)) > x a b c 1 1 1 -0.8821089 2 2 2 -0.7082583 3 3 3 -0.5948835 4 4 4 -1.8571443 > y=data.frame(a=c(1,3),b=3,c=rnorm(2)) > y a b c 1 1 3 -0.273155973 2 3 3 0.009517862 Now I want to merge x and y by columns a and b, hence creating a data.frame with all

Hi, I'm trying to make sense of the image3d plots in misc3d. Unfortunately I can't find any authors on the help pages of the function to e-mail directly. In the following toy example, I'm puzzled as to why (1) the positions of the image plot on the axes include negative values when I think I've specified all to be 1:3 and (2) the logic that needs to be adhered to in order to