similar to: Clustering and functions

Surprisingly, I played around with some test code and below actually creates equations that look correct. tempmat<-matrix(10,nrow=6,ncol=6) restrictmat<-diag(6) colnames(tempmat)<-c("AUD.l1","CHF.l1","CAD.l1","GBP.l1","EUR.l1","JPY.l 1")

Hello,=0D =0D I just noticed that the "svd" function does not work properly for some=0D sparse matrices.=0D When I replace the 0 by very small noises (let's say 10^-16), it then=0D works.=0D The test I've performed is to compared the singular values to the eigen=0D values (as I work with squarred matrices).=0D =0D Here is the code (I may be wrong!):=0D =0D

I was wondering if there is a way of editting strings in R. I have a set of strings and each set is a row of numbers and paranthesis. For example the first row is: (0 2)(3 4)(7 9)(5 9)(1 5) and I have a thousand or so such rows. I was wondering how I could get the corresponding string obtained by adding 1 to all the numbers in the string above. Dursun [[alternative HTML version deleted]]

is there a way to virtualize rocks5.2 on rocks5.4? I have been trying to and the gecko based install menu keeps failing. The error is a http 404 when looking for the release notes to display. any Idea of what causes that? I had that happen last time I tried to install rocks 5.2 on bare metal. The only notable thing about my network is that its on a 255.255.254.0 subnet mask. I can reserve its ip

Hi everyone, I'm a newbie to R and to linear mixed effects modeling, so please have mercy :-) Just wanted to check, whether what I'm doing is alright. I've collected data concerning tonotopic organization of the auditory cortex in humans, and I have approximately 1400-1800 data/time points per person (13 in total). Observations were made how the focus of neuronal activity changed

Hello, First the version info: platform powerpc-apple-darwin8.6.0 arch powerpc os darwin8.6.0 system powerpc, darwin8.6.0 status major 2 minor 3.1 year 2006 month 06 day 01 svn rev 38247 language R version.string Version 2.3.1 (2006-06-01) I have encountered some unusual behavior when trying to

This is a rather interesting, but I don't think it is a bug - it is just things that "you are not supposed to do"... you are assuming a certain evaluation order of the 4 "$" operators in " D$ABC[D$M] = D$V[D$M] " as in: temp1 <- D$M # 2nd and 4th temp2 <- D$V[temp1] # 3rd D$ABC[temp1] = temp2 # 1st What R did was this:

Hello I install Samba 4.0.0 alpha 12 on Ubuntu 9.10 and configured as PDC. When I want join windows to domain I get error message: It?s unable to communicate with domain controller for domain firma.local. Query DNS resource record for the service location (SRV) used to locate a domain controller for domain firma.local was successful. The query was for the SRV record for

Hi We have a few questions regarding the use of the "isoMDS" function. When we run "isoMDS" function using 60,000 x 60,000 data matrix, we get the following error message: ------------------------------------ cmdscale(d, k) : invalid value of 'n' Calls: isoMDS -> cmdscale ------------------------------------ We checked the source code of "cmdscale" and

We have 2 positions open for experienced ROR programmers. If you feel like you are a experienced ROR programmer and are looking for a full time position, please send over you resume. You must be willing to re- locate. No contract jobs. We have an in house team and have only 2 positions left. Starting Salary DOE. $30,000-$60,000 with housing, full benefits, 401k, paid vacation, ext. Don''t

Dear all, Are there any functions in R to reverse the order of the string. smth like reverse("abc") to get "cba"? Thanks a lot. [[alternative HTML version deleted]]

Welcome I install Samba 4.0.0 alpha 12 on Ubuntu 9.10 and configured as PDC. When I want join windows to domain I get error message: It?s unable to communicate with domain controller for domain firma.local. Query DNS resource record for the service location (SRV) used to locate a domain controller for domain firma.local was successful. The query was for the SRV record for

Hi all, I'm new to using R, and apologize for simplicity of this question. I'm using a data set with over 60,000 observations, Two variables are patient ID, and cost incurred by the patient. I'd like to generate frequency/table by patient and cost IF the total cost is over 2000. Right now I'm using: by(x$cost, x$patient, sum) but this generates a huge list for each patient.

Hello, I am trying to get a surface plot of a data set that looks like the following, 1 2 5.6 5 9 2.4 9 8 9.8 ... to (60,000 rows down) From my homework, the persp function only works with evenly spaced data points with the z data beeing in a matrix. my data is not in that format. the wireframe fxn gives me an error, no applicable method for "wireframe" the

I have a thirty thousand row data frame imported from excel and a 60,000 row data frame imported from excel. they share a common subset of the same data and I would like to combine the two into one data frame merged together on the data in common. I have looked at the help file for merge and intersect and cbind and rbind etc... And I can't figure it out. Thanks in advance Stephen --

Hi, I'm just wondering how I can do to make a huge postscript plot be manageable. My question is that I have to draw around 60,000 points which makes it painfully slow to print or view in gv or put it into latex document, though it is very fast to produce the postscript file. A simple example is in the attachment. Well, I found that if I use png or jpeg. It is much faster to view the

Dear all, I would like to ask your advice about a suitable computer for the following usage. I (am starting to) work with moderately big data in R: - cca 2 - 20 million rows * 100 - 1000 columns (market basket data) - mainly clustering, classification trees, association analysis (e.g. libraries rpart, cba, proxy, party) Can you recommend a sufficient computer for this volume? I am routinely

Hi All, I am trying to rearrange alphabetically each element in a character vector. ex: say the first element in the vector is "cba", and my goal is to turn it into "abc". The suggested function to use is sort(). But it turns out that sort doesn't work at the level of element. So I am wondering that if there is an alternative function for this purpose. Please help me out .

Hello, Does anyone know of a way of finding all the nodes that are between a pair of specified nodes in the excellent graph package (R vers 2.5.0). I have a class(graphAM) object and need to determine all possible pathways in this object. Here's an example: In the simple case of a--b--c (where -- denotes "conected to") the list of all pathways would be: ab ba abc cba cb bc.

Hello, I'm receiving an error on attempting to use the read.table() function to read in data from a tab-delimited file. The file has more than 60,000 rows with 94 tab-delimited columns. However, the error occurs on row 3 of the file: > wl <-read.table("sr003lines.tab", header=T, sep="\t") Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, :