similar to: repeating rows or columns within a matrix

Displaying 20 results from an estimated 1000 matches similar to: "repeating rows or columns within a matrix"

2002 Mar 20
5
inverted axis
Hello everybody! Spse I have the following X <- seq(1:100) #(a dim(100) sequence of integers 1:100 representing the possible actions of player 1 and player2 in a game) BR2X<- br2(X) #(a dim(100) sequence of points on range (1,100) representing the best response function of player 2 to player 1:s actions) BR1X<- br1(X) #(a dim(100) sequence of points on range (1,100)
2005 Apr 26
1
Index matrix to pick elements from 3-dimensional matrix
Hi all Suppose I have a dim=c(2,2,3) matrix A, say: A[,,1]= a b c d A[,,2]= e f g h A[,,3]= i j k l Suppose that I want to create a 2x2 matrix X, which picks elements from the above-mentioned submatrices according to an index matrix J referring to the "depth" dimension: J= 1 3 2 3 In other words, I want X to be X= a j g l since the matrix J says that the (1,1)-element should be
2001 Nov 29
3
Reset trellis plot backgroud color
Hello, I run R on Windows 2000. When I load lattice library and plot some lme class objects, the graphic window displays a dark-green color. Graphics look ok on the screen, but lines and points become invisible whem I send the plot to a printer because of the background color. Are there ways to reset the background color? Both par(bg=) and windows() do not work. Any ideas? Richard
2001 Jun 17
2
Large codebook?
Hello. Earlier I asked if it would be possible to use one common large codebook for all audiofiles. Can you estimate how the following system would work? 1. The audio would be divided to 16 samples blocks. 2. For each block, the first sample would be stored without any encoding. 3. Linear interpolations between the stored samples are computed. 4. The residues (length of 16 samples) between the
2003 Sep 24
1
net command,winbind and active directory
Hi all! Is it possible to just join to domain with samba's net command without creating machine account again if it is already created? Can winbind use machine account to authenticate itself to AD because I'm not an admin of AD i can't use administrator account for value of --set-auth-user option. If that is possible how do I get machine account password? is it possible to get with
2004 Sep 10
2
Re: Lossless AMI ADPCM
I'm copying the flac-dev list to see if anyone has any feedback also... --- Juhana Sadeharju <kouhia@nic.funet.fi> wrote: > Hello again. I had time to check the paper out. I have filled the > steps given in the paper with formulae, and then written a piece of > C code. It is not complete code, but could be a reasonable start. > Maybe there is one typo in the paper -- I have
2004 Jun 29
2
Numbers as symbols
I want to use question numbers from my survey data (fake data below) as markers in a scatterplot. I'm using "as.character" to convert question numbers to characters. However, plot truncates the 0 (zero) off of question 10. How can I get the ending zero so I can add questions 11 - 20? # Sample code below Question <- c(1,2,3,4,5,6,7,8,9,10) Performance <-
2004 May 05
4
anyone know how to combine two vector with some # overlaped?
Hi, there, Suppose I have two vector say x=c(1 2 3 4 5) and y=(2 3 6 7). Then I want to combine these two vector together and get z=c(1 2 3 4 5 6 7) with 2 and 3 only appear once. I want to extend this one to a general case(say more than 100 elements in x and y and each time I don't know which elements are the same). Do you happen to know how to do this and which command should use? Thank
2004 Apr 08
1
getting data frame rows out of a by object
Hi. I can quickly create a by object that selects rows from a data frame. After that, though, I don't know how to merge the rows back into a data frame that I can use. Here is an example where there is a data frame with three columns, a, b, and c. I update it so that there are two rows for each combination of a and b. I use by to select the subgroups of rows that share the same a and b
2001 May 29
2
One codebook for all audiofiles?
[ I'm not in the list because I didn't find a digested version; please move the lists to sourceforge.net, and we would have the digested version. I read the replies from the archive. ] Hello. Would it be possible to allow Vorbis use the same codebook for multiple files? I could keep a 650 MB codebook on CD-R and use that for all my audiofiles. If that is possible, how much the
2005 Oct 18
2
Lattice graphics strip labels for shingles
Dear all, back in 2002 Martin Henry H. Stevens wrote (https://stat.ethz.ch/pipermail/r-help/2002-May/019851.html) > How do I control the text in strips? Specifically, I want to put in the > ranges generated in shingle(x) where x is continuous. with an answer from Deepyan Sarkar (see strip.new towards the end of this message). I assume that the answer worked back then, but I've tried
2008 Oct 20
2
convert matrix to dataframe with repeating row names
Hi R, I have a matrix x with repeating row names. > dim(x) [1] 862 19 zz<-matrix(0,4,4) rownames(zz)=c("a","a","b","b") data.frame(zz) (?) I need to use x in a linear regression lm(as.formula(paste("final_dat[,5]~",paste(colnames(x),collapse="+"))),x ) this gives me a error Error in
2005 Jan 06
1
Using the Rprofile file to automatically plot data on Sta rtup of R version 2.0.1.
Dear John, I belive your problem has to do with the sequence of startup. I think that .Rprofile is called before the required libraries are attached. You might like to try putting your code into a .First() function and run it that way. Cheers, Andreas Dr Andreas Kiermeier Statistician SARDI FOOD SAFETY PROGRAM 33 Flemington Street Glenside SA 5065 Phone: +61 8 8207 7884 Fax: +61 8
2006 Jul 21
2
rpart unbalanced data
Hello all, I am currently working with rpart to classify vegetation types by spectral characteristics, and am comming up with poor classifications based on the fact that I have some vegetation types that have only 15 observations, while others have over 100. I have attempted to supply prior weights to the dataset, though this does not improve the classification greatly. Could anyone supply some
2005 Feb 23
1
package check - empty line at end of .R file
Dear R-devel members, I'm in the process of building a package (akmisc) for my own use (Win XP, R 2.0.1 Patched - see details at end). As I was adding functions (and hence more source .R files) to my package it got to the point were "R CMD check" failed with the following error (output has been cut). * checking S3 generic/method consistency ... WARNING Error in .try_quietly({ :
2013 Jun 27
3
using "rollapply" to calculate a moving sum or running sum?
#using "rollapply" to calculate a moving sum or running sum? #I am tryign to use rollapply to calcualte a moving sum? #I tried rollapply and get the error message #"Error in seq.default(start.at, NROW(data), by = by) : # wrong sign in 'by' argument" #example: mymatrix <- ( matrix(data=1:100, nrow=5, ncol=20) ) mymatrix_cumsum <- ( matrix(data=NA, nrow=5,
2009 Jul 20
1
S4 method dispatch with inheritance
Hi, I'm trying to create a new S4 class (myMatrix) which for now just extends dgCMatrix (from package Matrix). Then I want to use "[" which is defined in Matrix. Out of the box with "[" (defined in Matrix) I lose the class information and the result is an object of class dgCMatrix. If I specify a "["-method for myMatrix, it is not used because a signature
2005 Jan 21
6
Avoiding a Loop?
Dear R-Helpers, I have a matrix where the first column is known. The second column is the result of multiplying this first column with a constant "const". The third column is the result of multiplying the second column with "const"..... So far, I did it like this (as a simplified example): nr.of.columns <- 4 myconstant <- 27.5 mymatrix <- matrix(numeric(0), nrow=5,
2004 Oct 19
1
barchart fails when grouping variable has more than 7 levels (PR#7293)
Full_Name: Andreas Kiermeier Version: 2.0.0 OS: Windows XP Submission from: (NULL) (203.26.122.12) I've struck a problem drawing barcharts after installing R 2.0.0. Previously I've used the following command print(barchart(100*result ~ sample, groups=congener, data=dioxin.2003.fresh.ub.p, stack=TRUE, ylim=c(0,102))) to draw a stacked barchart of the
2004 Oct 20
1
Bug in 'rot=' of scales argument of barchart (PR#7296)
Full_Name: Andreas Kiermeier Version: 2.0.0 OS: Windows XP Submission from: (NULL) (203.26.136.133) When "rot=-90" in the scales argument of barchart (and possibly other trellis graphics) the axis label disappears behind the bars and only the last character can be seen. For "rot=90" things work fine.