search for: cantab

Displaying 20 results from an estimated 23 matches for "cantab".

2011 Apr 05
3
loop question
Dear all, I am trying to set up a list with 1:c objects each meant to capture the coefficients for one coefficient and 100 replications. I receive the following error message: Error in betaboot[[p]] : subscript out of bounds. My code is below. Where is my mistake? Many thanks, Thomas _________________________________ betaboot<-list(NULL) for (i in 1:c) { betaboot[[i]]<-cbind() }
2002 Jan 08
3
Finding functions in uninstalled libraries
...e). I think I've been told this before, but how do I search for a function/keyword in libraries I don't yet have installed? (ie. on the CRAN site I tried the search engines with "recode" etc., but didn't pick up the car package this way) Stuart Dr Stuart Leask MA MB BChir (Cantab) MRCPsych Clinical Lecturer in Psychiatry, University of Nottingham Dept Psychiatry Duncan Macmillan House, Porchester Road, Nottingham. NG3 6AA. UK tel. 00 44 115 969 1300 xtn 40784 fax 0115 955 5352 www.nottingham.ac.uk/psychiatry/staff/sjl.html -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...
2002 Feb 21
1
Factor analysis of categorical or mixed categorical/continuous data in
Are there any suitable routines that perform factor analysis of categorical or mixed categorical/continuous data in R? Stuart Dr Stuart Leask MA MB BChir (Cantab) MRCPsych Clinical Lecturer in Psychiatry, University of Nottingham Dept Psychiatry Duncan Macmillan House, Porchester Road, Nottingham. NG3 6AA. UK tel. 00 44 115 969 1300 xtn 40784 fax 0115 955 5352 www.nottingham.ac.uk/psychiatry/staff/sjl.html -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...
2009 Aug 06
1
Section 1.3.1 of R-Ext Documentation lists tests/Examples/pkg-Rex-Rout.save incorrectly (PR#13877)
Full_Name: Andrew Thornton Version: Webpage OS: Linux Submission from: (NULL) (81.154.9.63) The Writing R Extensions documentation at: http://cran.r-project.org/doc/manuals/R-exts.html lists two different filenames for making the example's Rout.save a test result. Section 1.1.3 says: "If tests has a subdirectory Examples containing a file pkg-Ex.Rout.save, this is compared to the
2002 Jul 03
3
EXT3-fs error on kernel 2.4.18-pre3
...en't run fsck as I would hate to down the server with that nice uptime... Should I be worried? I am only mentioning this as I suppose it may be a bug somewhere in ENOSPC handling, so perhaps someone is interested in this report... -- Best regards, Anton -- Anton Altaparmakov <aia21 at cantab.net> (replace at with @) Linux NTFS maintainer / IRC: #ntfs on irc.openprojects.net WWW: http://linux-ntfs.sf.net/, http://www-stu.christs.cam.ac.uk/~aia21/
2012 Nov 30
1
xts indexed with Date class
Hi I see a changed behaviour in xts indexed on class Date in the latest versions, versus 2. It seems to be related to changes to/from daylight savings time, happens those weekends. Is it not intended that class Date be used like this, or is this new behaviour incorrect? Giles Example: > a<-as.Date(15423:15426) > x<-xts(seq_along(a),a) > print(x) [,1] 2012-03-24
2011 Aug 12
2
rollapply.zoo() with na.rm=TRUE
Hi. I'm comparing output from rollapply.zoo, as produced by two versions of R and package zoo. I'm illustrating with an example from a R-help posting 'Zoo - bug ???' dated 2010-07-13. My question is not about the first version, or the questions raised in that posting, because the behaviour is as documented. I'm puzzled as to why na.rm no longer is passed to mean, i.e. why
2010 Sep 15
1
contr.sum, model summaries and `missing' information
Hi, I have a dataset with a response variable and multiple factors with more than two levels, which I have been fitting using lm() or glm(). In these fits, I am generally more interested in deviations from the global mean than I am in comparing to a "control" group, so I use contr.sum() as the factor contrasts. I think I'm happy to interpret the coefficients in the model summary
2002 May 03
2
an info on 3d representation
Dear list, sorry to waste your time. I downloaded R and I like it very much. However, my main interest is in plotting 3D graphics form imported data (points and lines in a 3d space). I imported data in a very elegant way but I wasn't able to find in R something similar to the simple "splot" function of WGNUplot (I don't need persp, image, contour: my values are not
2003 Nov 28
3
Problem to boot Xenolinux.
Hi, I am trying to install Xen/Xenolinux v1.1 on my workstation which has 2 SCSI disks. The first disk has WinXP installed, and the second disk has Redhat 8.0. I copied the images into /boot and modified grub.conf accordingly: title Xen / XenoLinux 2.4.22 root (hd1,0) kernel /xen.gz dom0_mem=131072 ser_baud=115200 noht noreboot module /xenolinux.gz root=/dev/sdb2 ro
2012 Aug 20
22
Xen 4.3 release planning proposal
Hello everyone! With the completion of our first few release candidates for 4.2, it''s time to look forward and start planning for the 4.3 release. I''ve volunteered to step up and help coordinate the release for this cycle. The 4.2 release cycle this time has been nearly a year and a half. One of the problems with having such a long release is that people who get in features
2005 Jan 05
0
matrix no longer "is" array in 2.0.1?
I have an S4 class which extends array and has other slots, and in upgrading to 2.0.1 (from 1.9.1) I have encountered a change in behaviour. This causes me some difficulties if I want to allow 2-dimensional arrays in the slot (which I do). The following (in 2.0.1) illustrates the point: > setClass("foo",representation("array")) [1] "foo" > a <-
2011 Jun 30
0
S4 group generic with additional argument
Dear R-help, I am attempting to set the "Summary" group generic function for my S4 class. Using the standard arguments, this is easy. The function returns the result of the generic for every element in a list: ? setClass("TestClass", representation(elements = "list")) ? tc <- new("TestClass", elements = list(a = 1:5, b = 6:20)) ?
2011 Jul 21
1
--max-vsize
Hi, In both R 2.13 and the SVN trunk, I observe odd behaviour with the --max-vsize command-line argument: 1. passing a largeish value (about 260M or greater) makes mem.limits() report NA for the vsize limit; gc() continues to report a value... 2. ...but that value (and the actual limit) is wrong by a factor of 8. I attach a patch for issue 2, lightly tested. I believe that fixing issue 1
2010 Aug 27
1
introspective capabilities
Hi, Is there any way, from R code, to perform introspection as to where certain names acquired their values? The specific functionality I'm looking for in this case is to be able to request my editor to view the definition corresponding to a name in its original source location (presuming for the moment that that location exists). Other functionality that I'm looking for is to identify
2012 Dec 13
0
max_prepared_stmt_count exceeded using RODBC + 64-bit win7
Hi I am running R2.15.2 64-bit on Windows 7, using RODBC 1.3-6, MySQL5.5.20, MySQL Connector 5.5.2 - these are the latest 64-bit versions AFAIK. sqlQuery and sqlSave work fin as expected, but in a long session with a few sqlSave() calls, I get an error, for example: Error in sqlSave(channel = channel, dat = USArrests[, 1, drop = FALSE], : HY000 1461 [MySQL][ODBC 5.2(w)
2008 May 01
3
how to not sort factors when plotting
Hello, When making a graph, plot and boxplot automatically sort my factor levels (y axis) into alphabetical order. Is there a way to make it NOT do this? I've tried: sort.by="none", sorted=FALSE, sort=FALSE, reorder=FALSE. Thank you.
2003 Dec 01
1
Linus "praise" for Xen
http://www.kerneltraffic.org/kernel-traffic/kt20031201_243.html --- Relevant section --- Nuno Silva mentioned: The good people at Cambridge made a (very nice) VMM that exploits ring0/1/3 to let one machine run various kernels independently (the kernels need to be ported to the xen arch). Xen itself executes in ring0 and the "guest" operating systems execute in ring1.
2015 Feb 16
1
[Xen-devel] [PATCH V5] x86 spinlock: Fix memory corruption on completing completions
On 15/02/15 17:30, Raghavendra K T wrote: > --- a/arch/x86/xen/spinlock.c > +++ b/arch/x86/xen/spinlock.c > @@ -41,7 +41,7 @@ static u8 zero_stats; > static inline void check_zero(void) > { > u8 ret; > - u8 old = ACCESS_ONCE(zero_stats); > + u8 old = READ_ONCE(zero_stats); > if (unlikely(old)) { > ret = cmpxchg(&zero_stats, old, 0); > /* This
2015 Feb 16
1
[Xen-devel] [PATCH V5] x86 spinlock: Fix memory corruption on completing completions
On 15/02/15 17:30, Raghavendra K T wrote: > --- a/arch/x86/xen/spinlock.c > +++ b/arch/x86/xen/spinlock.c > @@ -41,7 +41,7 @@ static u8 zero_stats; > static inline void check_zero(void) > { > u8 ret; > - u8 old = ACCESS_ONCE(zero_stats); > + u8 old = READ_ONCE(zero_stats); > if (unlikely(old)) { > ret = cmpxchg(&zero_stats, old, 0); > /* This