similar to: NULL object, R programming

Displaying 20 results from an estimated 7000 matches similar to: "NULL object, R programming"

2005 May 30
2
trouble with cumsum?
Dear R users, I am using R version 2.0.1 (2004/11/15) on an i386-pc-mingw32 platform. I encounter the following problem while using cumsum: > a <- rep(0.01, 100) > b <- cumsum(a) > sum(a) == 1 [1] TRUE > b[100] == 1 [1] FALSE Am I missing something? Should cumsum have such an outcome? Thanks in advance for any clarifications any of you can offer. Regards, Makram Talih --
2005 Jul 13
2
Efficient testing for +ve definiteness
Dear R-users, Is there a preferred method for testing whether a real symmetric matrix is positive definite? [modulo machine rounding errors.] The obvious way of computing eigenvalues via "E <- eigen(A, symmetric=T, only.values=T)$values" and returning the result of "!any(E <= 0)" seems less efficient than going through the LU decomposition invoked in
2019 Mar 01
3
Can't authenticate to AD using Samba with SSSD
Would someone please tell me where I can find some good troubleshooting documents to resolve AD authentication issues when using Samba? Is this mailing list the best place? I was able to setup a working WINBIND-Samba setup on CentOS 7.6, but I am required to use SSSD on a different CentOS 7.6 server. Using a test VM, I can get services running, but I can't authenticate from a Mac or
2019 Feb 18
1
Authenticating AD users and Local users
Thank you for replying! I can login with my Active Directory credentials, but I can’t login using the local CentOS “svc_dictations” account. I created the local account usingusing “adduser”, “smbpasswd”, and then updating my smb.conf file (below). Thank you, Brian [global] workgroup = YALE password server = ad1.yu.yale.edu<http://ad1.yu.yale.edu>
2009 Apr 08
1
Sweave problem, with multicolumn tables from R to LaTeX
Hi there, I have been using the example provided bellow for a while, and It was working without any problem. Nevertheless, just since 2-3 days is not working, probably because I did update.packages(). I have tried to re-install the older versions of the packages Hmisc() and xtable(), but still does not work. Can you run this example, and tell me if you got the same problems? I use
2004 Aug 06
3
Re: Please confirm your message
icecast@xiph.org wrote: > Hello, this is the mailing list anti-spam filter at Xiph.Org. > We need you to confirm your e-mail message with the subject of > "(no subject)". > > Please send a message to the following address, or simply use your > mailer's "Reply" feature. > > icecast+confirm+1053014484.2633.87372b@xiph.org > > Rather than
2004 Jul 07
3
fast NA elimination ?
dear R wizards: an operation I execute often is the deletion of all observations (in a matrix or data set) that have at least one NA. (I now need this operation for kde2d, because its internal quantile call complains; could this be considered a buglet?) usually, my data sets are small enough for speed not to matter, and there I do not care whether my method is pretty inefficient (ok, I
2013 Apr 22
2
R not loading
I am having a problem with loading R on my 64 bit computer. It used to load perfectly until I upgraded to R 3.0.0 now it takes about 10 to even 20 minutes ? Does anyone know how to remedy this problem? Russell " Skip" Barbour Ph.D. Associate Director for Statistics Center for Interdisciplinary Research on AIDS Yale School of Medicine 135 College St. Suit 200 New Haven ,
2007 Jun 19
3
Could not find lmer function in {Matrix} package
I am having trouble calling the lmer function in the {Matrix} package. I first installed and loaded {Matrix} as follows: > install.packages("Matrix") > library(Matrix) The package loaded successfully, however when I attempted to call lmer, I received the following message: Error: could not find function "lmer" I also tried: < ?lmer which produced no search
2006 Mar 17
3
can't load "geoR"
Dear R list, I've just installed R and then followed the instructions to install the package "geoR" from within R by using the following line of code: install.packages("geoR", contriburl = "http://www.est.ufpr.br/geoR/windows") This installed okay under the folder C:\documents and settings\ ... But when I follow the instructions in the illustrative session
2007 Oct 05
8
Linux editor for R+LaTeX, but not Emacs
Using Tinn-R (in windows) is possible to run latex and R from the same editor, which was great. Now, I am using Ubuntu-linux, which has been better than WinXP. Currently, I am using Emacs (and then install ESS) for running LaTeX and R from a same editor-program (like i was doing with Tinn-R in windows). Nevertheless, and even though i have been using Emacs for almost 2 years, it is not as
2000 Oct 25
1
lifetable, survivorship.. [forwarded message from Diana Fischer]
This was accidentally addressed to me, personally: ------- start of forwarded message ------- Message-id: <39F70D7C.287323D5 at yale.edu> MIME-version: 1.0 From: Diana Fischer <diana.fischer at yale.edu> To: maechler at stat.math.ethz.ch Subject: R-Project Date: Wed, 25 Oct 2000 11:42:36 -0500 I briefly looked at the R documentation of available statistical procedures. It appears
2010 Jun 21
1
Contrast interaction effects in lmer object for reciprocal transplant experiment
Dear All: I am using lmer() {lme4} to analyze results from a reciprocal transplant experiment where the response variable is modeled as a function of two fixed effects and their interaction. Example data follow: #library(lme4) #library(gmodels)
2008 Jun 25
1
huge data?
Hi Jay Emerson, Our Intention is to primarily optimize "R" to utilize the Parallel Processing Capabilities of CELL BE Processor.(has any work been done in this area?) We have huge pages(of size 1MB 16MB ) available in the system and as you pointed out our data is also in the GB ranges.So the idea is if Vectors of this huge size are allocated from Huge Pages the performance will
2007 Dec 08
2
NAMESPACE choices for exporting S4 methods
We are building a package, and want to create S4 methods for both head and mean for our own BigMatrix class. Following the recommendation in "Writing R Extensions" we use exportMethods instead of export in NAMESPACE (this is described as being "clearer"). This works for head, but not for mean. Obviously we importFrom(utils, head), but don't need to do this for mean,
2006 May 11
1
Comparing skewness
Hello, I'd appreciate any ideas on how to compare the skewness of two samples. In my case, one sample is likely to be roughly normal and the other one skewed. I could run two D'Agostino tests, but then I'll have to correct for the family-wise error. What if both samples are skewed? If there are no general tests (or they can't exist), I'd like to know. Thanks, Skirmantas
2010 May 04
2
split() bug? Inconsistent Windows/Linux behavior.
I didn't see anything on this in the bug reports, and a search of the archives had lots of false positives when searching on "split" to be helpful. I don't view this as particularly interesting or useful, but wanted to report it because I stumbled on it (and don't remember ever seeing "invalid permissions" as part of a segfault).? Yes, I realize this is a silly
2012 May 11
1
bigmemory
To answer your first question about read.big.matrix(), we don't know what your acc3.dat file is, but it doesn't appear to have been detected as a standard file (like a CSV file) or -- perhaps -- doesn't even exist (or doesn't exist in your current directory)? Next: > In addition, I am planning to do a multiple imputation with MICE package > using the data read by bigmemory
2009 Jul 20
2
kmeans.big.matrix
Hi, I'm playing around with the 'bigmemory' package, and I have finally managed to create some really big matrices. However, only now I realize that there may not be functions made for what I want to do with the matrices... I would like to perform a cluster analysis based on a big.matrix. Googling around I have found indications that a certain kmeans.big.matrix() function should
2006 Jun 22
1
Package struction question (second try)
Sorry, gmail seemed to have made an attachment out of my first attempted post. Trying again: ------------------------------ At the encouragement of many at UseR, I'm trying to build my first real package. I have no C/Fortran code, just plain old R code, so it should be rocket science. On a Linux box, I used package.skeleton() to create a basic package containing just one "hello