Displaying 20 results from an estimated 1300 matches similar to: "univariant time series"
2005 Jan 21
2
transfer function estimation
Dear all,
I am trying to write an R function that can estimate Transfer functions *with additive noise* i.e.
Y_t = \delta^-1(B)\omega(B)X_{t-b} + N_t
where B is the backward shift operator, b is the delay and N_t is a noisy component that can be modelled as an ARMA process. The parameters to both the impulse response function and the ARMA noisy component need to be estimated simultaneously.
I
2006 Feb 17
1
t-test confidence interval
Hi,
Does anyone know of a pre-existing function where I can get the t-test
confidence interval for a given mean, sd, degrees of freedom and
confidence limit.
I do NOT want to run any data through the t.test function.
Kind regards,
Sam.
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2004 Jun 01
4
S/R programming books
Hi,
I have been using R for a few months now and I am confident that the
language has everything I will need to complete my PhD. I can create
functions, script files and packages, but I would like to write my
programs more efficiently (maybe using OO). Can anyone recommend a good
book on the "art" of good R programming?
Kind Regards,
Sam.
2004 Mar 01
2
dynamic linking
Hi,
I want to set up a dynamic link between a library e.g. myLibrary.a and a
C++ file myProgram.cc to use in R. Is this possible? If so how does one
go about doing it?
Any help will be greatly appreciated.
Cheers,
Sam.
2008 Feb 02
1
ARCH LM test for univariant time series
Hi,
Does anyone know if R has a Lagrange multiplier (LM) test for ARCH
effects for univariant time series?
Thanks!
--
Tom
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2004 Jun 11
1
dll file missing?
Hi,
I am trying to "do" a dyn.load(), but I get the following error...
> dyn.load("fileGT.dll")
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library "C:/R_Files/fileGT.dll":
LoadLibrary failure: The specified module could not be found.
It states it can't find the dll but it is in that directory. I have
2008 Apr 10
1
Structural Modelling in R-project
>From: "Ivaha C (AT)" <civaha at glam.ac.uk>
>Date: 2008/04/10 Thu AM 08:51:14 CDT
>To: R Help <r-help at r-project.org>
>Subject: [R] Structural Modelling in R-project
if you have a univariate time series and you
want to break it into its various components,
then you get the scalars based on a decomposition.
if you have a kalman filter/
basic strucutural
2007 Feb 15
1
Images and stylesheets are not serving
Hello
One of ours sites has just lost all it''s images and styling.
It''s not a very busy site at all, so it might have been not working
properly for some time now.
Here''s how we start it in Lighty
<pre>
$HTTP["host"] == "gregynog.glam.ac.uk" {
server.document-root = "/www/rails/greg/current/public/"
server.error-handler-404 =
2007 Sep 10
7
ferret index file(s)
I am running version 3.2 of ferret and would like to upgrade to a more
current version. will my existing 3.2 index files be compatible?
thanks,
AK
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2008 Jan 12
2
Factor Analysis
Good Morning,
Is it possible to use the R program for a CFA with dichotomous data?
Thank you,
Kathleen
Kathleen Kemp, M.A.
Doctoral Clinical Psychology Student,
Concentration: Forensic Psychology
Drexel University
Philadelphia, PA 19104
kk354@drexel.edu
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2007 Nov 13
6
Facter and arrays
Hi,
Is it possible to have an array as the output of a custom fact? And
then to pass it into a template in Puppet?
I currently have a fact that looks like this:
Facter.add("exports") do
setcode do
case Facter.hostname
when (/thishost/i):
[ "/local", "/local2" ]
end
end
end
& a template like this:
<%
2004 Nov 16
8
[Bug 954] configure w/PAM & tcp_wrapper crashes on Irix 6.5
http://bugzilla.mindrot.org/show_bug.cgi?id=954
Summary: configure w/PAM & tcp_wrapper crashes on Irix 6.5
Product: Portable OpenSSH
Version: 3.8.1p1
Platform: MIPS
OS/Version: IRIX
Status: NEW
Severity: normal
Priority: P2
Component: Build system
AssignedTo: openssh-bugs at mindrot.org
2007 Feb 15
3
count sequence of integers
Hi,
I would like to be able to count a sequence of numbers. For example, given a
vector of the following integers
(1,1,1,2,2,2,2,3,3,3,3,3,3,1,1,1,1, 3,3)
the function would return
(3, 4, 6, 4,2)
Does anyone have any cool ideas to solve this?
Any help appreciated.
Regards,
Sam.
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2007 Sep 24
2
Getting host IP address?
Hi,
I''m gradually moving my site''s config over to Puppet (still in the
testing phases at the moment!).
Is there any way of getting/referring to a host''s IP address? I want to
set up iptables via Puppet, & can use a template but need to get the
IP address into the template somehow.
I''m getting my node definitions (& thus classes) from LDAP. I
2009 Mar 12
4
Extremely custom mailbox locations
I'm in the position where I'd like to offer IMAP access
to a collection of email accounts which are stored in
a very odd manner.
Files are stored as:
/blah/$dd-$mm-$yy/$domain/1234/1234
For example:
/reject/12-3-2009/cvsrepository.org/35199/35199639
There is a single file for each mail, which I guess technically
probably counts as an mbox folder, but only just.
I
2004 Apr 14
4
binary numbers
Hi,
Is there a function in R that lets one represent an integer in binary
format for a given number of bits? So an example would be....
> binary.function(num=5, num.of.bits=8)
> "00000101"
Or, is this something I have to write myself?
Any help would be appreciated.
Cheers,
Sam.
2006 Jan 04
8
Backing up "live" Xen systems?
I''ve been testing Xen for a few weeks now and am just about to
put it into production use. (I wrote some scripts to create
Debian images easily; the tools are included in Debian Sid as
"xen-tools".)
The only thing troubling me at the moment is backing up the
virtual instances.
I''m looking to run about four virtual systems upon a host. If
the physical host
2010 Dec 22
16
stupid ZFS question - floating point operations
I have a coworker, who''s primary expertise is in another flavor of Unix.
This coworker lists floating point operations as one of ZFS detriments.
I''s not really sure what he means specifically, or where he got this
reference from.
In an effort to refute what I believe is an error or misunderstanding on
his part, I have spent time on Yahoo, Google, the ZFS section of
2007 Nov 27
3
Big problems with 3.0.24-6etch6 Debian packages
Hi,
I'm using Samba as a PDC with roaming profiles on a Debian Etch machine,
the clients are Windows XP/2000 machines.
I just installed security upgrades with aptitude, and this upgraded all
samba 3.0.24-6etch4 packages to 3.0.24-6etch6 (except for samba-doc
which was upgraded to 3.0.24-6etch7).
Immediately after the upgrade, my users could not load their profiles at
login anymore. Errors
2007 Oct 09
2
Failure to find definition
Hi,
I''m trying to set up apache2 under puppet, as in this recipe:
http://reductivelabs.com/trac/puppet/wiki/Recipes/DebianApache2Recipe
I have a file "apache2.pp" as shown there, and then a webserver.pp file
(see below).
On running puppetd on the client, I get this message:
err: Could not retrieve configuration: Could not find definition site in
file