similar to: working with matrix

Hi, I run into problem when writing a syntax, I don't know syntax that will return true or false if an integer is odd or even. Thanks OYEYEMI, Gafar Matanmi Department of Statistics University of Ilorin P.M.B 1515 Ilorin, Kwara State Nigeria Tel: +2348052278655 Tel: +2348068241885 [[alternative HTML version deleted]]

I am trying to read a csv file using the code; contol <- read.csv("RBS.csv") This is the error message I got; Error in file(file, "r") : unable to open connection In addition: Warning message: In file(file, "r") : cannot open file 'RBS.csv', reason 'No such file or directory' Where was the mistake? -- OYEYEMI, Gafar Matanmi (Ph.D) Senior

Hi everyone, please I'm having problem importing data from Stata and excel. Help me out. Thanks --------------------------------- [[elided Yahoo spam]] [[alternative HTML version deleted]]

Dear R-users,                       I have problem or at cross-road on using discrminant analysis for my set of data. All my dependent variables are all categorical, hence the normalty assumption is no longer valid. Is it still right to use discrminant analysis or is there any non-parametric technique or approach to discriminant analysis? Thanks OYEYEMI, Gafar Matanmi Department of Statistics

Dear R-helpers                         I am having problem or reservation analyzing my data using discrminant analysis. The problem is that all my dependent variables are categorical which means that the normalty assumption is no longer valid. Can one still use discrminant analysis for such data? Is there non-parametric technique of doing discrminant analysis in R. Thanks  OYEYEMI, Gafar

Dear, My problems are; 1. Simulate a P-variate multivariate data set (N by P) 2. Draw samples of size n from N (with or without replacement) 3. Obtain eigen values of the variance-covariance matrix of each sample drawn in (2) above. 4. print out the matrix of eigen values as well as the identity of sample generating them. Thanks ---------------------------------

Hello all, I have a problem of getting the locations of elements in a vector or matrix. I know one can use the command "which.min" or which.max" to get the location of minimum or maximum values in a vector. But is there any command to get the first k minimum values or maximum values in a vector. Thanks --------------------------------- You rock. That's why

Hi everyone. My problem is about multivariate analysis. Given a multivariate data X, of dimension (n by p), n is the number of observations while p is the number of variables. I wanted a sample of size p+1 that will have its product of the eigen values of the covariance matrix to be the minimum among all the possible samples (n combination (p+1)). I have written a syntax with worked well, but the

Dear everyone, I am having problem simulating multivariate data. Though I was able to simulate the data, but finding the variance-covariance matrix of simulated data did not give exact covariance matrix used in simulating the data. Unlike some other packages, like stata, using command "corr2data" will simulate data having the covariance matrix exactly with the specified covariance

Dear All The problem is about regularization methods in multiple regression when the independent variables are collinear. A modified regularization method with two tuning parameters l1 and l2 and their product l1*l2 (Lambda 1 and Lambda 2) such that l1 takes care of ridge property and l2 takes care of LASSO property is proposed The proposed method is given

Hello all, I have a some scripts on my Linux box, i want to be able to edit it remotely from a browser login into my server at a particular port number, just like Webmin, SWAT etc. eg( http://mylinuxaddy:port). Does any body have idea of how i can acheive this? I would appreciate your response. Thanx --Yemi __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new

Hi. I have Fedora core 1 (kernel 2.4.22) and I downloaded http://developer.osdl.org/dev/iproute2/download/iproute2-2.6.7-ss040608.tar.gz Before upgrading, tc -V shows "iproute2-ss020116", and after shows the same. I had a lot of errors during install (make and make install). Is this lastest version for kernel 2.4? How can I upgrade?? Thanks a lot. Leandro

Hello, Is routing within the same network possible? If it is, what configuration should I put for the firewall/router shown below? I basically want the host debian13 to be able to send packets via a multi-homed firewall. I think the multi-homed firewall involve some routing. +-------------------+ |debian13 | |eth0:192.168.0.13 | +-------------------+ |eth0 |

How can I change the tick mark values in lattice, specifically wireframe? I have a 11*46 matrix of values that I am plotting using wireframe. Unfortunely, the values range from 0.1-1.1 and 0.5-5. Using the code below the tick marks have are (2,4,6,8,10) and (10,20,30,40). Thanks in advance. graphic5 <- wireframe(output.matrix, shade= TRUE, scales = list(arrows = FALSE, cex=.6,

I'm using R 1.7.1 under linux redhat it seems that the eigen values produced by eigen() do not follow a consistant order; I mean either ascending or discending e.g for one system: eigenV<-eigen(V) > print(eigenV$values) [1] -7.706828e+13 -4.702980e+13 -3.267579e+13 -1.701297e+13 -8.041677e+12 [6] -5.707311e+12 -5.053941e+12 -4.774652e+12 -4.280423e+12 -3.798905e+12

Hi everyone, I want to convert an R function into VBA for calculating the eigenvectors and eigenvalues of a matrix using the "Power Method". The function is: PowerMethod <- function(x, tolerance) {     my.mat <- var(x[,-1], na.method="available")     matSize <- dim(my.mat)[1]     eigenVec <- matrix(NA, nrow=matSize, ncol=matSize)     eigenVal <- rep(NA,

Dear R users, I was wondering if R has a built-in function doing the following : my_match(values_vector,lookup_vector) { for each value of values_vector : if value %in% lookup_vector, then value is unchanged else, value is changed the the closest element of lookup_vector, "closest" meaning "the one that would come just after if we sorted them using order()" } For example :

Hi Every one and Lerale Erwan I have briefly describe my problem and I have provide the steps as follows: I have intalled redhat properly and from the konsole I checked with mysql. "rpm -qa | grep mysql" and the konsole provide me the message: mysql-3.23.54a-11 mysql-server-3.23.54a-11 Then I have download the asterisk and addons: By the using of : cd /usr/src export

Hi, is it possible to Restore files deleted with " rm rf " from ext4 or ext3 filesystem by mistake. Regards Ahmad

Hi, I have a simple beginner's question on removing a list of objects. Say I have objects C243.Daily1, C243.Daily2...C243.Daily5 in my workspace. I'd like to remove these without using rm five times. So I write. > a <- list(paste("C243.Daily",sep="",1:5)) > rm(a) Obviously this wouldn't work, as it would only remove the object a. But is there any way