Displaying 20 results from an estimated 400 matches similar to: "Specifying State Space model to decompose structural shocks"
2008 Aug 06
4
Experience moving mailboxes from Dovecot 0.99.14 to Dovecot 1.07 => Improvement possible
Hi,
This small mail to share my observation about a recent move of mailboxes
between two servers and ask about explanation and/or improvement about UIDL
in dovecot.
SV1 : Dovecot 0.99.14 / Red Hat Fedore Core 4
SV2 : Dovecot 1.07 / CentOS 5.2
Mailboxes in /var/spool/mail on the twoo servers.
Test will be done with outlook express with option "leave message on server"
checked.
Goal is
2014 Jan 08
0
Strange behaviour of `dlm` package
Dear R-help!
I have encountered strange behaviour (that is, far-off filtering, smoothing
and forecast distributions under certain conditions) in the `dlm` package by
Giovanni Petris.
Here is an example:
I use the annual hotel bookings time series data, which I model using a
second order polinomial DLM.
First I perform the analysis with the data in logarithmic form and
everything seems to be
2013 Mar 08
0
using dlmModPoly in library dlm
Hi Group,
I'm trying to build a model to predict a product's sale price. I'm
researching the dlm package. Looks like I should use dlmModPoly, dlmMLE,
dlmFilter, dlmSmooth, and finally dlmForecast. I'm looking at the Nile
River example and I have a few questions:
1.
If I only want to predict future sale price based on observed sale
price, I should use a univariate model,
2009 May 10
1
Help with kalman-filterd betas using the dlm package
Hi all R gurus out there,
Im a kind of newbie to kalman-filters after some research I have found that
the dlm package is the easiest to start with. So be patient if some of my
questions are too basic.
I would like to set up a beta estimation between an asset and a market index
using a kalman-filter. Much littarture says it gives superior estimates
compared to OLS estimates. So I would like to
2009 Mar 11
1
Forecasting with dlm
Hi All,
I have a problem trying to forecast using the dlm package, can anyone offer
any advise?
I setup my problem as follows, (following the manual as much as possible)
data for example to run code
CostUSD <- c(27.24031,32.97051, 38.72474, 22.78394, 28.58938, 49.85973,
42.93949, 35.92468)
library(dlm)
buildFun <- function(x) {
dlmModPoly(1, dV = exp(x[1]), dW = exp(x[2]))
}
fit <-
2011 Jul 29
0
dlmSum(...) and non-constant state space models
Hello,
I would be very grateful if somebody more knowledgeable then me could assist
me in the following.
I have two (three actually but for simplicity I will say two) models which I
would like to fit jointly as a state space object. Here are the equations:
(1)
w = a1 + b1*(p) + e1
a1 = a1[t-1] + g1
g1 = g1[t-1] + e2
b1 = b1[t-1] + e3
(2)
d = a2 + b2*(w) + e3
a2 = a2[t-1] + e4
b2 = b2[t-1] + e5
2011 Jun 04
2
need recipe for samba to do user authentication against a centos 5.5 openldap server (NO IDMAPS! NO PDC!)
Hi all,
Please help Ive been wasting days at this...
I am not trying to create a PDC, I am not joining an active directory, I am
not needing samba schema in my openldap (or do I?), I am not trying to use
winbind and idmaps for translations from SID to UID/GID, I just want my
samba server which shares linux home directories to authenticate
user+password against my existing linux based openldap
2020 Feb 25
0
Replication failing with Win 2012 R2 (maybe)
Hello All,
WIndows DC reports (not for the entire directory, just a portion. See outputs below).
"The replication operation failed because of a schema mismatch between the servers involved.?
I suspect the error is a red herring.
Running several Samba DCs at multiple sites.
Version 4.11.6-Debian from Louis?s repo (on Ubuntu 18)
?vdcw00? is the Windows 2012 R2 server
?cdcx15? is the Samba
2002 Aug 01
1
Connection refused
I'm sure this has been asked a zillion times so I searched for hours before
posting this. How can there be so little documentation on this.
Point me to what to read.
rsh is good:
[g3p:~] smith% rsh -l a1012 sv1.domain.com
Password:
{a1012@sv1.domain.com:65}
rsync not good:
[g3p:~] smith% rsync -av a1012@sv1.domain.com:kkk.txt sync/
rsync: open connection using rsh -l a1012 sv1.domain.com
2003 Oct 17
2
nlm, hessian, and derivatives in obj function?
I've been working on a new package and I have a few questions regarding the
behaviour of the nlm function. I've been (for better or worse) using the nlm
function to fit a linear model without suppling the hessian or gradient
attributes in the objective function. I'm curious as to why the nlm requires
31 iterations (for the linear model), and then it doesn't work when I try to
add
2008 Jan 16
1
Error in plot.new() : figure margins too large
Hi
I am getting error :
Error in plot.new() : figure margins too large
Can you please help
-----code is ------------------------------------------------------------
temp <- seq(5500000/2, 22000000, 5500000/2)
sV2 <- c(1, 1+temp[-length(temp)])
eV2 <- temp
i=1
bitmap(paste("c:/vidhu/poster/poster_56half_2", LETTERS[i], ".png", sep =
""), "png256",
2003 Dec 02
0
names of parameters from nonlinear model?
I've been trying to figure out how to build a list of terms from a nonlinear
model (terms() returns a error). I need to compute and evaluate the partial
derivatives (Jacobian) for each equaiton in a set of equations.
For example:
> eqn <- q ~ s0 + s1 * p + s2 * f + s3 * a
> sv2 <- c(d0=3,d1=4.234,d2=4,s0=-2.123,s1=0.234,s2=2.123,s3=4.234)
> names( sv2 )
[1] "d0"
2012 May 25
1
question about TryCatch and lapply
Folks:
I've replaced an outer for-loop with lapply and it works great. But, I
can't seem to do the following type of exception handling:
tryCatch(dlmMLE(x)$value==Inf,error = function(e) NULL)
which basically says if the likelihood is Inf, throw an error. But what I
want it to do is just go to the next index in the list. When I was using a
for-loop I used:
2015 Jul 18
1
bug in group permission check
Jul 19 01:05:27 sv1 dovecot: auth: Error:
passwd-file(aa at ddd,89...24,<>):
stat(/usr/dovecot-cfg/dom-home/ddd/etc/ddd/shadow) failed: Permission
denied (euid=33454(dovecot) egid=33454(dovecot) missing +x perm:
/usr/dovecot-cfg/dom-home/ddd, we're not in group 33795(sysgroup), dir
owned by 32072:33795 mode=0710)
root at sv1 [~]# sudo -u dovecot groups
dovecot sysgroup
root at sv1 [~]#
2014 Jan 21
0
Re: [PATCH] builder: proper consider subkeys in index files
On Tue, Jan 21, 2014 at 05:18:27PM +0100, Pino Toscano wrote:
> + sv = caml_copy_string (fields->subkey ? fields->subkey : "");
> Store_field (v, 1, sv);
Heh, sure would be nice if this was an option type :-)
I believe the following should work:
(1) Change CAMLlocal4 (..) at the top of the function to:
CAMLlocal5 (rv, v, sv, sv2, fv);
(2) Then the new code
2003 Sep 30
1
can't get names from vector in nlm calls
I've been trying to figure out how to get the names of the parameter vector
variables when inside the function that nlm calls to return the objective
function value:
knls <- function( theta, eqns, data, fitmethod="OLS", instr=NULL, S=NULL )
{
## print( names( theta ) ) # returns NULL
## get the values of the parameters
for( i in 1:length( theta ) )
2003 Oct 06
1
getting names of p vector in nlm function...
Dear R programming folks:
I'm trying to finish off a package for non-linear simultaneous system
estimation and I've been trying to figure out how to get the names of the
parameter vector variables when inside the function that nlm calls to return
the objective function value:
knls <- function( theta, eqns, data, fitmethod="OLS", instr=NULL, S=NULL )
{
## print(
2011 Nov 18
0
Kalman Filter with dlm
I have built a Kalman Filter model for flu forecasting as shown below.
Y - Target Variable X1 - Predictor1 X2 - Predictor2
While forecasting into the future, I will NOT have data for all three
variables. So, I am predicting X1 and X2 using two Kalman filters. The code
is below
x1.model <- dlmModSeas(52) + dlmModPoly(1, dV=5, dW=10)
x2.model <- dlmModSeas(52) + dlmModPoly(1, dV=10,
2009 Sep 23
2
reading web log file into R
If I have a web log file?as follows:
#Software: Microsoft Internet Information Services 5.0
#Version: 1.0
#Date: 2007-12-03 13:50:17
#Fields: date time c-ip cs-username s-ip s-port cs-method cs-uri-stem
cs-uri-query sc-status sc-bytes cs-bytes time-taken cs(User-Agent)
cs(Cookie) cs(Referer)
"2007-12-03 13:50:17 200.40.203.197 - 200.40.51.20 80 GET
/localidades/img/nada.gif - 200 328 447 0
2009 Feb 15
0
Kalman Filter - dlm package
Dear all,
I am currently trying to use the "dlm" package for Kalman filtering.
My model is very simple:
Y_t = F'_t Theta_t + v_t
Theta_t = G_t Theta_t-1 + w_t
v_t ~ N(0,V_t) = N(0,V)
w_t ~ N(0,W_t) = N(0,W)
Y_ t is a univariate time series (1x1)
F_t is a vector of factor returns (Kx1)
Theta_t is the state vector (Kx1)
G_t is the identity matrix
My first