similar to: R-beta: Applying functions to vectors--question

Displaying 20 results from an estimated 5000 matches similar to: "R-beta: Applying functions to vectors--question"

2011 Jul 22
0
failed creating protocol instance to play queued url
I run thunderbird (both 3.x and 5.x) against dovecot 2.x and frequently see delays "loading message". I admit to having a very large mailbox and running multiple imap clients. I've turned on thunderbird debugging, and at least one pattern I see in the log during the delays (maybe a minute long) is the failed protocol message above. These are no the only delays, but are the ones
2010 Aug 31
2
R and Epi Info
Hello, I was wondering who to contact to see about somehow interconnecting or integrating the programs R and Epi Info. I have been involved in the development of Epi Info which is a software program developed by the Centers for Disease Control and Prevention (CDC) in Atlanta (www.cdc.gov/epiinfo<http://www.cdc.gov/epiinfo>). Epi Info allows for creating data entry systems and performs
2006 Feb 15
2
arrays of lists in R ("cell arrays" in Matlab)
Dear all I would like to have some data in the form of a 2-dimensional array (matrix) of lists, so that I can easily find the desired list object by indexing the structure by rows and columns. In matlab there exists a data type called "cell array": a matrix of "cells", which are composite objects very similar to R lists. I know that in R you can create 1-dimensional
2004 Oct 15
1
power in a specific frequency band
Dear R users I have a really simple question (hoping for a really simple answer :-): Having estimated the spectral density of a time series "x" (heart rate data) with: x.pgram <- spectrum(x,method="pgram") I would like to compute the power in a specific energy band. Assuming that frequency(x)=4 (Hz), and that I am interested in the band between f1 and f2, is the
2004 Aug 05
1
Post-hoc t-tests in 2-way repeated measure ANOVA
Hi all I am running a 2-way repeated measure anova with 1 between-subjects factor (Group=treatment, control), and 1 within-subject factor (Time of measurement: time1, time2). I extract the results of the anova with: summary(aov(effect ~ Group*Time + Error=Subj/Time, data=mydata)) Now, this must be clearly a dumb question, but how can I quickly extract in R all the post-hoc t-tests for the
2002 Mar 26
1
anova() for nlm or nls
Dear R community, I am currently fitting non-linear models using nlm and nls. 1) I would like to compare the different models analogous to the comparison of linear models with anova(). Is there a function in R which allows to do that? 2) I would like to constrain the parameter ranges to positive values only. Is there an option in nlm or nls which allows to constrain parameter ranges? (So far I
2003 Dec 04
2
R performance--referred from Bioconductor listserv
Hi, all-- I wanted to start a (new) thread on R speed/benchmarking. There is a nice R benchmarking overview at http://www.sciviews.org/other/benchmark.htm, along with a free script so you can see how your machine stacks up. Looks like R is substantially faster than S-plus. My problem is this: with 512Mb and an overclocked AMD Athlon XP 1800+, running at 588 SPEC-FP 2000, it still takes me
2007 Apr 20
2
Fastest way to repeatedly subset a data frame?
Hi - I have a data frame with a large number of observations (62,000 rows, but only 2 columns - a character ID and a result list). Sample: > my.df <- data.frame(id=c("ID1", "ID2", "ID3"), result=1:3) > my.df id result 1 ID1 1 2 ID2 2 3 ID3 3 I have a list of ID vectors. This list will have anywhere from 100 to 1000 members, and
2004 Apr 28
3
Possible bug in foreign library import of Stata datasets
Concerning this article, Christopher Zorn, "Generalized Estimating Equation Models for Correlated Data: A Review with Applications." 2001. American Journal of Political Science 45(April):470-90. The author very kindly provides data for replication on his web page: http://www.emory.edu/POLS/zorn/Data/GEE.zip. I've been comparing the Professor Zorn's results obtained with
2010 Aug 12
13
[PATCH] GSoC 2010 - Memory hotplug support for Xen guests - third fully working version
Hi, Here is the third version of memory hotplug support for Xen guests patch. This one cleanly applies to git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git repository, xen/memory-hotplug head. On Fri, Aug 06, 2010 at 04:03:18PM +0400, Vasiliy G Tolstov wrote: [...] > Testing on sles 11 sp1 and opensuse 11.3. On results - send e-mail.. Thx. On Fri, Aug 06, 2010 at 12:34:08PM
2003 Oct 31
1
rsync and smbfs
I'm trying to configure rsync snapshots as described at http://www.mikerubel.org/computers/rsync_snapshots/. I'm essentially using the following commands: mv backup.3 backup.tmp mv backup.2 backup.3 mv backup.1 backup.2 mv backup.0 backup.1 mv backup.tmp backup.0 cp -al backup.1 backup.0 rsync -a --delete source_directory/ backup.0/ I'm trying to backup two directories in a
2002 Jun 11
1
wbinfo / NT4 PDC
I'm having a really strange problem with winbind and my NT4 PDC. The PDC was here before I started working here, so I'm not sure what all has been done to it. Here's the layout: * NT4 PDC (no BDC)- Up to date with all service packs and hotfixes. Running Cyberwall-Plus firewall. * RHL 7.2 (2.4.9-31custom) with Samba 2.2.4 (compiled from src). I was able to join the domain. The
2012 Sep 15
0
[Repost 1/3] The X11 device patch
[ Email resend 1 of 3 ] From: Dirk Eddelbuettel <edd at debian.org> To: R-core <R-core at r-project.org> CC: Philip Johnson <plfjohnson at emory.edu>, edd at debian.org Subject: The X11 device patch Date: Wed, 27 Jun 2012 11:53:13 -0500 R Core, *Great* to see this bubble up in the NEWS aggregation: 2.15.1 patched NEW FEATURES The X11() window
2004 Aug 08
1
(REPOST) Simple main effects in 2-way repeated measure ANOVA
Hi all I am running a 2-way repeated measure anova with 1 between-subjects factor (Group=treatment, control), and 1 within-subject factor (Time of measurement: time1, time2). I extract the results of the anova with: summary(aov(effect ~ Group*Time + Error=Subj/Time, data=mydata)) Now, this must be clearly a dumb question, but how can I quickly extract in R all the post-hoc t-tests for the
2002 Apr 20
2
integration of a discrete function
Dear R list I am looking for a function in R that computes the integration of a discrete curve, such as a power spectrum, in a specified interval (in my case, that would be 'power in a certain frequency band'). I found only functions, such as 'integrate', that perform adaptive quadrature on analytic functions, and not on a curve specified as a set of (x,y) pairs. I have the
2005 Feb 21
0
want to call R from aplatform written i strict ANSI C
Hi, I would like to connect my GHA-system to R and to deliver the library to users of R. could you give me a comprehensive example containing the step by step procedure to: 1. create a callable library with R binaries (not having a standalone version of R with its own main()). If possible, I would like to run the system on unix,alpha,linux computers as well as on IBM's parallel
2005 Feb 25
0
Fwd: want to call R from aplatform written i strict ANSI C
Hi, I sent the below message to r-devel but received no answer. I would like to contribute my system but I need som advice concerning the connections. Is my proposal of any interest to you? regards Ralf ?stermark ----- Forwarded message from Ralf ?stermark <rosterma at abo.fi> ----- Date: Mon, 21 Feb 2005 11:35:21 +0200 From: Ralf ?stermark <rosterma at abo.fi> Reply-To: Ralf
2006 Jun 01
3
Errors on EXT3 on RHEL3, Can we use e2fsprogs 1.36?
SUMMARY We are getting many ``Free blocks count wrong for group'' errors when running e2fsck on a 245-GB ext3 filesystem. This is when the file system is cleanly unmounted on a relatively quiet system to do a resize. From reading other messages here, my suspicion is that this is because we have e2fsprogs 1.32. Questions: * Should we use e2fsck/e2fsprogs 1.36 and will that probably
2003 Dec 04
2
RE: R performance questions
Hi-- While I agree that we cannot agree on the ideal algorithms, we should be taking practical steps to implement microarrays in the clinic. I think we can all agree that our algorithms have some degree of efficacy over and above conventional diagnostic techniques. If patients are dying from lack of diagnostic accuracy, I think we have to work hard to use this technology to help them, if we
2003 Oct 30
0
dist() objects with NA's don't print them (PR#4866)
The print.dist() method in the mva package currently prints the triangular distance matrices with the ``trick'' of setting the (diagonal and) upper triangular part to NA, and then uses print(mat, na = "") to print that matrix. This is very much undesired if there are true NAs. Reproducible example code: (x <- cbind(c(1,NA,2,3), c(NA,2,NA,1))) (d <- dist(x)) ## does not