similar to: factor analysis (pca): how to get the 'communalities'?

I needed a symbolic and algebraic computation software. The best solution I've found so far is maxima computer algebra system. I was wondering if there is any R package that has similar features as maxima's or somebody could point me to reference manuals on how to use R for this purpose. Thanks, Angel

Hi, I have tried to install 'tensor' as a new package in these phases: 1. via 'Install package from local Zip-File' in Rgui/Windows98: install.packages("D:/R/_Pakets12MB/tensor.zip", .lib.loc[1], CRAN = NULL) 2. Looking at the library folder, there was now a new entry 'tensor' including some files e.g. \library\tensor\R\tensor.R 3. Then I have done

This morning I had 37 messages from the r-help list in my mailbox. I think its becoming excessive for an e-mail list. I wonder if whoever looks after this list could either move or gateway it to a usenet group? That would also eliminate the need for special purpose archiving and searching facilities since the site: http://groups.google.com would automatically provide that. That site also

Dear all, sorry, this is for sure really basic, but I searched a lot in the internet, and just couldn't find a solution. The problem is to create new variables from a data frame which contains both individual and group variables, such as mean age for an household. My data frame: df hhid h.age 1 10010020 23 2 10010020 23 3 10010126 42 4 10010126 60 5 10010142

Dear all, I'm running a self-written numerical optimization routine (hazard model) which includes computing the inverse of the outer product of the score. I have been getting the above error message ("System is computationally singular"), and after some tweaking, I realized that these variables have some high numbers and the problem could be circumvented by scaling them down (i.e.

Dear all, I have a code where I subset a data frame to match entries within levels of an factor (actually, the full script uses three difference factors do do that). I'm very happy with the precision with which I can work with R, but since I loop over factor levels, and the data frame is big, the process is slow. So I've been trying to speed up the process using by(), but I got stuck at

Dear all, I have a simple question which I unfortunately do not seem to be able to solve myself. I have a (NxK) matrix and want to generate a new matrix by multiplying each row with itself such that the new matrix has dimension ((N*K)xK) (or better, generate an array with dimension (K,K,N)). I tried apply, but that did not work. Any suggestions? Thanks! Stephan ## Here is a simple

Dear all, A quick question which I somehow cannto figure out: I want to apply the function "any" to subsets of a dataset in order to create a vector with TRUE/FALSE values, depending on whether a subset has the number 5. I.e., y <- matrix(c(1,2,3,3,4,5,5,6,6,7,5,1,1,3,5,NA,5,1,1,3),ncol=2) > y [,1] [,2] [1,] 1 5 [2,] 2 1 [3,] 3 1 [4,] 3 3 [5,]

Hello, First of all sorry for my English. I am experiencing with Samba and I have a problem. I have an old server (OLD) with Red Hat 9 and Samba 2.2.7a that is working well. Now I try to start up a new server (NEW) with Red Hat Enterprise 4 and Samba 3.0.22. If I try to connect from NEW to itself by using smbclient I got the shared resources list correctly. If I try to connect to NEW from OLD,

i was using multiple ports because that's how i figured i'd have to do it. o, mounting the remote source locally? i'm not familiar with how to do this. i'm also not seeing how to do this in the docs. how would i go about mounting a remote stream? -a.j. On Fri, 27 Apr 2001, Jack Moffitt wrote: > Why are you using multiple ports at all? That's what mountpoints are >

Hi, I\m writing a VFS module that needs to move a file, after it is transferred, to a folder that is not shared. The shared folders that use this VFS module are used to sent files for processing by another application. The module signals the application that it has work to do and moves the file. So far I've been using the last close call, moving the file after doing SMB_VFS_NEXT_CLOSE().

heya... i'm extremely new to the list (10 minutes), and i have a burnin' question that i was hopin' you folks could help me out with. i'm running beos as an encoder box, with two streams (8000 and 8001) hosted on it. the idea is to use my redhat box to relay those streams to the public using icecast, allowing the be machines cpu cycles to focus solely on encoding. anyway, i

Hi. I'd like to find some way for Samba to convert the filenames created by Macintosh OS X into something windows can use. According to their docs: http://developer.apple.com/techpubs/macosx/Essentials/SystemOverview/FileSystem/chapter_9_section_13.html filenames are stored as canonically decomposed Unicode 2.1 in UTF-16 format (a sequence of 16-bit codes) Samba running on a

Hello, I do appologize if this is something that was already discussed somewhere else... but for now I was not able to find the appropriate How-To. Would anybody know what the IPTABLES entries are to have working Samba4 Domain Controller? I tried the following: -A INPUT -p tcp -m state --state NEW -m tcp --dport 88 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 749 -j ACCEPT -A

On 4 Jan 2003 at 12:51, Wolfgang Lindner wrote: > Please excuse me, if the following questions are *too* off-topic, but I found it > interesting. In inspecting your code I came across an R feature, I could not > find in the online manuals: > > Q1. Looking at the left-handside in your function def: > > "cov.cor" <- function ( covmat ) { >

Hello, markdown (Python implementation) seems to render:  to <img src="pfad/und/eine" title="lange/url zum bild.jpg" alt="alternativer text"/> breaking the URL at the whitespace. AFAIK whitespaces are ok in URLs so why is it breaking up the URL here? Thanks, Florian -- I'm using an

Hi, I'd like to run a win-prog with Linux but it fails: Runtime Error - abnormal program termination. In the console I get the following infos: fixme:ole:CoCreateInstance no classfactory created for CLSID {48071bd8-a9f0-11d0-954b-00a0c911760e}, hres is 0x80040154 fixme:ole:MSFT_ReadValue BSTR length = -1? fixme:ole:ITypeLibComp_fnBind (L"Now", 10ba25, 0x3, 0x406ef200,

Hello, some questions regarding btrfs deduplication. - What is the state of it? Is it "safe" to use? https://btrfs.wiki.kernel.org/index.php/Deduplication does not yield much information. - https://pypi.python.org/pypi/bedup says: "bedup looks for new and changed files, making sure that multiple copies of identical files share space on disk. It integrates deeply with btrfs so

Hello, I need to to slightly extend the markdown syntax. (place an image (img tag) in text which URL has not yet been determined). Therefore I want to define something like $[Alt text](img.jpg) which would be replaced by my pre-processor with  and then sent to markdown. Is there any special syntax that should be used for such 3rd party extensions? How would you do

Hi everyone, I would like to compute the sum of cross products of rows of a matrix. Does anyone know how to do this without an explicit loop for computational efficiency? Below is a code example. Thanks! Stephan # I.e., if I have a matrix like this x <- matrix(rep(c(1,2,3),3),ncol=3) ## > x ## [,1] [,2] [,3] ## [1,] 1 1 1 ## [2,] 2 2 2 ## [3,] 3 3