search for: matrix1

Dear R team, The following piece of code (to use the lsa package) works fine on my mac os x, but when I run the same code on Windows XP, it doesn't work any more. ### code: library("lsa") matrix1 = textmatrix("C:\\Documents and Settings\\tine stalmans.TINE. 000\\LSA\\cuentos\\", stemming=TRUE, language="spanish", minWordLength=2, minDocFreq=1, stopwords=NULL, vocabulary=NULL) print(matrix1,bag_lines = 3, bag_cols = 3) matrix1 = lw_bintf(matrix1) * gw_idf(matrix1) spac...

Hi, On R 2.10.1 for Windows, when I do the following to duplicate the structure of a large numeric matrix called matrix1: matrix2 <- matrix(0,nrow=nrow(matrix1),ncol=ncol(matrix1)) and then rownames(matrix2) <- rownames(matrix1) I get a "cannot allocate vector of size xxMb" error but if I instead do: rnames <- list() rnames <- rownames(matrix1) matrix2 <- matrix(0,nrow=nrow(matrix1),nco...

I have two matrix with same dimensions. I want to do t.test using each column from 2 different matrix. Row n Column names in both matrix are same. e.g. Matrix1 id VC1 VC2 VC3 R 1 2 3 R1 4 5 6 R3 7 8 9 Matrix2 id VC1 VC2 VC3 R 10 11 12 R1 13 14 15 R3 16 17 18 want to do t.test using each column (with same name ) using Matrix1 and Matrix2 for eg t.test(Matrix1$VC1, Matrix2$VC1)$p.value What is the best way to do i...

...mple, the result should appear like this (as below). The result of this differentiation should also be in matrix table and should be write in . csv file. Result of the differences: A B C A 0 1 0 B 0 0 0 C 0 0 0 At the mean time, I'm able to load the .csv file and convert it to matrix matrix1 <-read.table("matrix1.csv", header=T, sep=",") matrix1 <- as.matrix(matrix1) matrix2 <- read.table("matrix2.csv", header=T, sep=",") matrix2 <- as.matrix(matrix2) But, I can't find a suitable script to compare the differences between the matr...

...le 1 below), with huge time and memory savings. Is it possible to tweak example 2 to update in place also? The only difference is that the matrix is held within a new environment. Thanks, Simon # example 1 - fast and doesn't create copies rm(list=ls()) main <- function() { matrix1 <- matrix(1.0, nrow=60000, ncol=200) if (sum(matrix1) == 12000000) { print ("OK") } else { print ("NOT OK") } funcExample <- function() eval.parent(substitute({ print(paste("Mem1", memory.size())) for (i in 1:30...

...ge many matrices generated by an R program. These matrices have different dimensions and I'd like to group them somehow. The best way would be to have a big matrix (let's call it database) where every element database[x,y] consists of a list of matrices that all have the dimensions ncol(matrix1)=x and nrow(matrix1)=y. So those matrices have to be embedded into lists and the lists have to be embedded in the big database matrix. If I simply try database=matrix(0,10,10) database[4,4]=c(matrix1,matrix2) I get Error in database[4, 4] = c(matrix1, matrix2) : number of ite...

I have a question related to matrix(). The code below randomly generates 3 Poisson numbers into a 3 by 1 matrix: > matrix1 <- matrix(rpois(3,lambda=2),nrow=3,ncol=1) And I use list() to see what they are: [,1] [1,] 3 [2,] 1 [3,] 4 , which is what I had intended. I then I want to randomly generate y Normal numbers into a 3 by 8 matrix. y in this case would be 3, 1, and 4; so the resulting matrix should...

...y (7 nov 03) I had a mostly working 2.27 samba running on my redhat 9 box that I configured via SWAT. Now I can not get back into SWAT & I also (in a useless attempt to make it work) upgraded to samba 3.0 I get the following when trying to start SWAT: An error occured while loading http://matrix1:901/: Could not connect to host matrix1 (port 901) here is my /etc/hosts file: # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost localhost.localdomain matrix1 192.168.2.147 philip 192.168.2.145 rob...

Hi R-users I have a series of matrices and I would like to bind them together by column using a loop (i.e. not writing cbind(matrix1, matrix2,matrix3....)). The reason is because in my real data set I have a very large number of matrices. Example: matrix1 <- matrix (1:12,4,3) matrix2 <- matrix (13:24,4,3) matrix3 <- matrix (25:36,4,3) matrix4 <- matrix (37:48,4,3) matrix5 <- matrix (49:60,4,3) for...

Hi, just during these vacation days, I'm trying to approach with multicore package and I have some troubles with foreach. What I'm trying to do is to extract a data in coordinate (ii,jj) from a matrix2, only if the data in the same coordinate in matrix1 is ==1. Make this with a nested "for" take a lot of time because I have thousand of values. ex. Binary_hex = NULL foreach(ii=1:nrow(matrix2)) %:% foreach(jj=1:ncol(matrix2)) %dopar% {when(matrix2[ii,jj] == 1) %:% {Binary_hex <- c(Binary_hex, matrix1[ii,jj])}} During this operation......

Hello, I have got two matrices with different length. The matrices have 3 columuns. The first two are coordinates. The third is a measurement. Now I want to get a subtraction between every single value of the third column (between matrix1 and matrix2), but only if the two first coordinates in matrix1 and matrix2 are the same. I tried "FUN=?" in aggregate and ave, but I don't know the command for such a subtraction? Thank's a lot. Felix --------------- The matrixes (examlple): 1 0.1 0.0042 1 0.2 0.00423 1 0....

Dear R users, I'm trying to create images of 2 symmetrical matrices using heatmap.2 of the 'gplots' library. Both matrices have the same row and column names For the first matrix I'm using the default clustering and column denrogram options: heatmap.2(Matrix1, symm=T, breaks=20, col=rich.colors(19), main="matrix1", density.info="histogram", denscol="black", trace="none", na.rm=T, dendrogram="col", Colv=T) I would like to show the second matrix with the same row and column ordering of the first matrix. I...

Hi, thank you for taking the time and reading my question. My question is twofold: 1. I have several matrices with variables and one matrix with water levels. I want to predict the water level with the data in the other matrices. Basically, * mod<-lm(matrix1 ~ matrix2+matrix3)* ( What looks like a minus is meant to be the wiggly minus.) Of course I could dissemble the matrices and paste their columns into one long, long vector. But the method above gives reasonable results. Are there any methodological objections against doing this? 2. After having do...

...\ } WORK_create_matrix(int) WORK_create_matrix(double) #undef WORK_create_matrix #define create_double_matrix(dim1,dim2)\ m_create_double_matrix(dim1,dim2,__LINE__,__FILE__) int main(int argc, char *argv[]) { double **matrix1 = create_double_matrix(size, size); double **matrix2 = create_double_matrix(size, size); int iterations = 0; int i,j; double iter_limit = 100; alpha = rand(); beta = rand(); while (iterations < iter_limit) { for (i = 0; i < size; i++) { for (j...

Let's say that I have a bunch of matrices. They look like this (pardon using fruit for examples, my actual data tables are far too enormous): Matrix1 Apples Oranges Pears A 5 6 7 B 5 3 4 C 8 9 10 D 11 13 14 E 15 3 8 F 1 4 5 Matrix2 Apples Oranges Pears A 5...

I have two matrix with same dimensions. I want to do t.test using each column from 2 different matrix. Column names in both matrix are same. e.g. Matrix1 id VC1 VC2 VC3 R 1 2 3 R1 4 5 6 R3 7 8 9 Matrix2 id VC1 VC2 VC3 R 10 11 12 R1 13 14 15 R3 16 17 18 want to do t.test for eg t.test(Matrix1$VC1, Matrix2$VC1)$p.value What is the best way to do it. I have dataset with 4000 columns for each matrix with same row and column n...

Dear list, I have two martix like these, each rows with name in the matrix. I try to select rows with identical name from two matrix and calculate their correlation. Matrix1: 2-Sep 9 5.5 1 7.18 10.0 8 139.45 2-Sep 7 4.9 15 8.22 61.68 9 123.62 4-Sep 5-Sep AAMP A2M A2M . . . Matrix2: 2-Sep 4 7 1 6.8 12 8 19.4 2-Sep 2 8 15 2.2 6.8 12 13.2 4-Sep AAMP AAMP ABCA5 A2M A2M I try...

...2 ... name2 2,0 1,2 1,2 ... name3 0,2 1,0 2,0 ... name4 2,0 0,2 0,2 ... Comparison of both matrices reports a unique difference based on the following code: informative<-which(matrix1!=matrix2) transitions<-napaste(matrix1,matrix2)[informative] unique_transitions<-unique(transitions) lfreq<-list(State_transitions=unique_transitions) lf<-as.data.frame(lfreq) plot(lf)...

Hello, I can not seem to get smbpsswd to add any users to samba. No matter if I use the CLI, the Webmin module or SWAT I always get this response when trying to add any user [root@matrix1 samba]# smbpasswd -m -a gerard Failed initialise SAM_ACCOUNT for user gerard$. Failed to modify password entry for user gerard$ I take it this has somehting to do with PAM & or shadow passwords, & I have been lookig for a about a week & the best that I can find anything related to thi...

A general question that I have been pursuing for some time but have set aside. When finishing some analysis, I can have multiple matrices that have specific column names. Ideally, I would like to combine these separate matrices for a final output as a csv file. A generic example: Matrix 1 var1A var1B var1C x x x x x