Displaying 20 results from an estimated 2000 matches similar to: "max length of a factor variable"
2004 Sep 20
5
persiting complex R objects
Is there a method to save a large and complex R object (either as a
binary or text file) so that it can be loaded and reused at a later
time? Specifically, I am creating large lists (several thousand
elements), each element of which is either a vector or a matrix (with ~
2000 rows). The dimensions of the matrices are not all the same. My
ideal would be a set of functions of the form
obj
2005 Apr 26
1
survreg with numerical covariates
Does anyone know if the survreg function in the survival package can fit
numerical covariates ?
When I fit a survival model of the form
survreg( Surv(time,censored) ~ x )
then x is always treated as a factor even if it is numeric (and even if
I try to force it to be numeric using as.numeric(x). Thus, in the
particular example I am analysing, a simple numerical covariate becomes
a factor
2005 Jun 14
5
load ing and saving R objects
Does anyone know a way to do the following:
Save a large number of R objects to a file (like load() does) but then
read back only a small named subset of them . As far as I can see,
load() reads back everything.
The context is:
I have an application which will generate a large number of large
matrices (approx 15000 matrices each of dimension 2000*30). I can
generate these matrices using an
2005 Dec 08
0
qr with missing dependent variables
Dear R-help
We have a regression problem which could be solved elegantly if we could
figure out how to get the R residuals() function to accept missing
dependent variables.
We have ~20000 gene-expression vectors y, each being measured on the
same set of individuals, but each having a small random number of
missing values.
For each expression vector we wish to search across the genome
2004 Jul 16
2
inconsistency in pchisq (PR#7099)
Full_Name: Richard Mott
Version: 1.9.0
OS: Windows XP
Submission from: (NULL) (81.178.233.208)
Shouldn't these give the same answer?
> pchisq(67.60644,df=1,lower.tail=F,ncp=0)
[1] 3.219647e-15
> pchisq(67.60644,df=1,lower.tail=F)
[1] 1.996145e-16
>
2013 Sep 11
1
Position available University of Oxford
*The Jenner Institute is seeking to appoint an outstanding
Bioinformatician to run a Transcriptomics Core Facility at the Jenner
Institute and to identify, develop and integrate bioinformatics
resources into the research programmes of the institute. You will be
based at the Jenner Institute in the Old Road Campus Research Building,
Headington, Oxford and working in conjunction with Gilean
2000 Mar 09
0
Samba 'stops' access to a file
I am running Samba on Solaris 2.6 and am connecting to it
from Windows NT4.0. Whilst running some Access software
the database is initially accessed without problem but part
way through processing I get the report that the database
file cannot be accessed since it is exclusively opened by
another user. I cannot then read the database at all until
I log out of Windows then back in. All is
2001 Apr 24
1
New Package Released: PTAk
PTAk_1.1-1 ( Principal Tensor Analysis on k modes) has been released on
CRAN
A multiway method to decompose a tensor (array) of any
order,
as a generalisation of SVD also supporting non-identity
metrics and penalisations.
2-way SVD with these extensions is also available. The
package includes also some other multiway
methods: PCAn (Tucker-n) and
2001 Apr 24
1
New Package Released: PTAk
PTAk_1.1-1 ( Principal Tensor Analysis on k modes) has been released on
CRAN
A multiway method to decompose a tensor (array) of any
order,
as a generalisation of SVD also supporting non-identity
metrics and penalisations.
2-way SVD with these extensions is also available. The
package includes also some other multiway
methods: PCAn (Tucker-n) and
2008 Sep 10
1
Do I need a dummy?
Hi all,
I managed to get all my VMs (5 in total) up and running in bridged
mode with public IP addresses from my ISP. All are running Debian
Etch in a Dom) of Debian Etch with Xen 3.1 using the instructions
here: http://www.howtoforge.com/debian_etch_xen_3.1
But ideally I only want two of the DomUs on the public internet with
the other three only on an internal network and the two
2005 May 20
5
load constraints
hello
Another beginners question..... I've been googling through the icecast
archives looking for information on how icecast handles multiple
clients. Haven't been able to find what I'm looking for.
Could someone please explain (or direct me to links) what happens to the
upload bandwidth of a box running icecast, when more than one client
connects? For example, if a box on a 128kbps
2009 Jul 29
1
lrm-function: Interpretation and error message
I have a set of data that is not normally distributed and for which I
need to build a model. So, I tried the lrm function from the
design-package. The first run went well, and I got the following
results:
Wald Statistics Response: RVCL2PROC.mott
Factor Chi-Square d.f. P
TTV.mott (Factor+Higher Order Factors) 69.01 4
2005 May 11
2
icecast & china
On Wed, 2005-05-11 at 10:37 +0100, gARetH baBB wrote:
> On Wed, 11 May 2005, Iain Mott wrote:
>
> > Tried with http://zhongshuobeijing.dyndns.org:7000/streamname.m3u
> > but was blocked. And at last resolve:
> > http://139.168.32.224:7000/streamname.m3u
>
> Well, 40 minutes later that host is certainly not responding.
>
good morning
No, I shut it down at the
2005 May 10
3
icecast & china
hello list
I'm preparing to do a sound project in china where I hope to broadcast
an mp3 stream using Icecast2. I've set up test system (outside China)
and it seems to be working happily (using Pd to generate audio and the
extension "shoutcast~" to stream to the icecast server).
I've asked a few people in china to tune into these broadcasts and have
run into problems.
2005 May 11
2
icecast & china
Tried with http://zhongshuobeijing.dyndns.org:7000/streamname.m3u
but was blocked. And at last resolve:
http://139.168.32.224:7000/streamname.m3u
is that what you mean? no, perhaps you mean the localhost? "bicho" is
its name. Pardon me if i'm confused on this.
Will also, tomorrow, try your suggestion of port 443 and Ross'
suggestion of the web port.
cheers, iain
On Wed,
2017 Oct 14
2
Populate one data frame with values from another dataframe for rows that match
Dear @Bert Gunter<mailto:bgunter.4567 at gmail.com>, I tried merge and I faced many challenges. @Rui Barradas<mailto:ruipbarradas at sapo.pt> solution is working.
From: Bert Gunter <bgunter.4567 at gmail.com>
Date: Friday, 13 October 2017 at 22:44
To: Kevin Wamae <KWamae at kemri-wellcome.org>
Cc: R-help <R-help at r-project.org>
Subject: Re: [R] Populate one data
2017 Oct 15
1
Populate one data frame with values from another dataframe for rows that match
Dear @William<mailto:wdunlap at tibco.com>, thanks for the feedback. I have tested it on the larger dataset and noticed that it created two variables, pf_raw and pf_curated.
The output we were looking for, was one that takes the variable pf_mcl in curated dataset and replaces pf_mcl in matching rows within the raw dataset.
@Eric<mailto:ericjberger at gmail.com>?s solution was able to
2017 Oct 14
0
Populate one data frame with values from another dataframe for rows that match
Your example used one distinct studyno in DF1 and one distinct pf_mcl in
DF2. I think that makes it hard to see what is going on, but maybe I
completely misunderstand the problem. In any case, let's redefine myDF1
and myDF2. Note that myDF1 contains a studyno not in myDF2 and vice versa.
myDF1 <- structure(list(studyno = c("J1000/9", "J895/7", "J931/6",
2017 Oct 13
4
Populate one data frame with values from another dataframe for rows that match
I'm trying to populate the column ?pf_mcl? in myDF1 with values from myDF2, where rows match based on column "studyno" but the solutions I have found so far don't seem to be giving me the desired output.
Below is a snapshot of the data.frames.
myDF1 <- structure(list(studyno = c("J1000/9", "J1000/9", "J1000/9", "J1000/9",
2013 Sep 11
0
Bioinformatics Position University of Oxford
*The Jenner Institute is seeking to appoint an outstanding
Bioinformatician to run a Transcriptomics Core Facility at the Jenner
Institute and to identify, develop and integrate bioinformatics
resources into the research programmes of the institute. You will be
based at the Jenner Institute in the Old Road Campus Research Building,
Headington, Oxford and working in conjunction with Gilean