similar to: arima() bug

Displaying 20 results from an estimated 100 matches similar to: "arima() bug"

2013 Sep 09
1
Fitting Arima Models and Forecasting Using Daily Historical Data
Hello everyone, I was trying to fit an arima model to a daily historical data, but, for some reason, havent been able to. I basically have 212 observations (from 12/1/2012 to 06/30/2013) containing the number of transits for a particular vessel. The following messages are produced by R: dailytrans.fit<-arima(dailytrans$transits, order=c(0,1,2), seasonal=list(order=c(0,1,2), period=365),
2009 Nov 01
1
problems whit seasonal ARIMA
Hello, I have daily wind speed data and need to fit seasonal ARIMA model, problem is that my period is 365. But when I use arima(...) function, with period 365, I?m getting error message: ?Error in makeARIMA(trarma[[1]], trarma[[2]], Delta, kappa) : maximum supported lag is 350?. Can someone help me with this problem? Thank you Sincerely yours, Laura Saltyte
2010 May 25
0
getQ0 gives different results
getQ0 function is used in arima. I am trying to recode arima function in perl ( I have to use this function in grid. We have restrictions to install R package in large set of machines ) The getQ0 acts differently for same kind of input ( I hope ). > init [1] 18.368400 0.415422 0.415422 > arma [1] 1 1 0 1 1 1 0 > transform.pars [1] 1 > trarma = .Call(stats:::R_ARIMA_ transPars,
2009 Mar 06
0
modifying a built in function from the stats package (fixing arima) (CONCLUSIONS)
Thanks a lot to everybody that helped me out with this. Conclusions: (1) In order to edit arima in R: >fix(arima) or alternatively: >arima<-edit(arima) (2) This is not contained in the "Introduction to R" manual. (3) A "productive" fix of arima is attached (arma coefficients printed out and error catched so that it doesn't halt parent loops to search for
2004 Aug 02
3
help(arima) return value typo?
in ?arima (R-1.9.1), the return value component 'convergence' should be 'code'? (it's a pity there is no reliable way to check return value documentation consistency with the code, or is there?) h. ---------------------------------- Hiroyuki Kawakatsu School of Management and Economics 25 University Square Queen's University, Belfast Belfast BT7 1NN Northern Ireland
2004 Aug 02
3
help(arima) return value typo?
in ?arima (R-1.9.1), the return value component 'convergence' should be 'code'? (it's a pity there is no reliable way to check return value documentation consistency with the code, or is there?) h. ---------------------------------- Hiroyuki Kawakatsu School of Management and Economics 25 University Square Queen's University, Belfast Belfast BT7 1NN Northern Ireland
2010 Aug 04
0
Maximum seasonal 'q' parameter
Hi R, Seems like the maximum seasonal 'q' parameter for the ?arima is 350. Any way, where we can increase this? Since I am working on 3 year (q=252*3) and 5 year(q=252*5) returns, I may require this option. Thanks. > fit=arima(r,c(3,0,0),seasonal = list(order = c(0, 0, 500), period = NA));tsdiag(fit);fit$aic Error in makeARIMA(trarma[[1L]], trarma[[2L]], Delta, kappa) :
2011 Jul 20
0
The C function getQ0 returns a non-positive covariance matrix and causes errors in arima()
Hi, the function makeARIMA(), designed to construct some state space representation of an ARIMA model, uses a C function called getQ0, which can be found at the end of arima.c in R source files (library stats). getQ0 takes two arguments, phi and theta, and returns the covariance matrix of the state prediction error at time zero. The reference for getQ0 (cited by help(arima)) is:
2006 Jan 02
1
Use Of makeARIMA
Hi R-Experts, Currently I'm using an univariate time series in which I'm going to apply KalmanLike(),KalmanForecast (),KalmanSmooth(), KalmanRun(). For I use it before makeARIMA () but I don't understand and i don't know to include the seasonal coefficients. Can anyone help me citing a suitable example? Thanks in advance. ------------------------------------------
2009 Mar 01
0
Variable scope.
I have a question on scope/reference/value type of variables with 'R'. The issue cam up first when I look at the arima code. I see code like: myupARIMA <- function(mod, phi, theta) { . . . . mod } Then armafn <- function(p, trans) { . . . . Z <- upARIMA(mod, trarma[[1]], trarma[[2]]) . . . . res <- .Call(R_ARIMA_Like, x,
2007 Dec 09
1
Problems working with large matrix (using package R.huge)
Hi all, Since I was having several problems trying to work with a large matrix I started to use the package R.huge but I'm having the following problem > x<-FileByteMatrix("covtype.data",nrow=581012,ncol=55) Error: cannot allocate vector of size 770.8 Mb In addition: Warning messages: 1: Reached total allocation of 447Mb: see help(memory.size) in: readChar(con = con, nchar =
2007 Aug 14
4
Import of Access data via RODBC changes column name ("NO" to "Expr1014") and the content of the column
Dear all, I have some problems with importing data from an Access data base via RODBC to R. The data base contains several tables, which all are imported consecutively. One table has a column with column name "NO". If I run the code attached on the bottom of the mail I get no complain, but the column name (name of the respective vector of the data.frame) is "Expr1014" instead
2003 Sep 17
0
A question on seasonal time series - R package
Hi there, I am using the "ts" class of the "R" package. I have a data file containing a time series of 1152 entries. It is actually 4 days data cascaded together where the time interval of data collected is 5 minutes. Thus, I have 288 values per day. When I am trying to fit this data using a period of 288 with a seasonal model, using the arima(...) function, I am
2004 Jun 21
1
R 1.9.1 is released
I've rolled up R-1.9.1.tgz a short while ago. This is a maintenance version mainly to fix a number of minor bugs and issues (the most annoying one seems to have been the change to barplots of tables) and some installation issues. Because of the relocation the CVS archives, there is no direct access to the files until they show up on the CRAN master site. You can then get it from
2004 Jun 21
1
R 1.9.1 is released
I've rolled up R-1.9.1.tgz a short while ago. This is a maintenance version mainly to fix a number of minor bugs and issues (the most annoying one seems to have been the change to barplots of tables) and some installation issues. Because of the relocation the CVS archives, there is no direct access to the files until they show up on the CRAN master site. You can then get it from
2008 Jun 15
1
c.noquote() weirdness
I haven't been able to get anywhere tracking this down. It seems that c.noquote() does something strange with its third (and subsequent) parameters: R-2.7.0 under NetBSD, R-2.6.0 under Solaris, and R-2.8.0 (unstable) (2008-06-10 r45893) under WinXP, I get: > c(noquote('z'), 'y', 'x', '*') [1] z y x * x * > or: > c(noquote('z'),
2009 Feb 19
1
Arima bug?
I was looking at the 'R' code associated with arima. I see the following: upARIMA <- function(mod, phi, theta) { p <- length(phi) q <- length(theta) mod$phi <- phi mod$theta <- theta r <- max(p, q + 1) if (p > 0) mod$T[1:p, 1] <- phi if (r > 1) mod$Pn[1:r, 1:r] <-
2005 Feb 04
2
Swap Memory get used totally
Hi list, Time to time, my asterisk goes down.Verifying with TOP, I see the swap memory of the computer get used totally but, I don't see what the process is using it. Hereis a copy wath I see doing top. Does somebody have an idea ? My asterisk version is ====>>> Asterisk CVS-HEAD-08/18/04-22:30:24 Thanks Angel. 08:49:19 up 5:23, 1 user, load average: 0.50, 0.70, 0.64 35
2009 Jan 19
0
Migration with ubuntu 8.0.4.1 fails
hi, I have 2 servers running xen 3.2 on ubuntu 8.0.4.1 (64-bit) installed from the repositories (2.6.24-22-xen) with Intel-Quadcore CPU''s. The setup is based on http://www.asplund.nu/xencluster/xen-cluster-howto.html. I can start the domU (ubuntu 8.0.4.1 (64-bit)) on each server without problems. But when I start the live-migration with xm migrate dummy xen2 --live the migration
2011 Sep 20
9
XL: pv guests dont reboot after migration (xen4.1.2-rc2-pre)
A pv guest will not reboot after migration, the guest itself does everything right, including the shutdown, but xl does not recreate the guest, it just shuts it down. This goes for 2.6.39 and 3.0.4 guest kernels, havent tried different ones. I also haven tried different xen versions. Dont know if this would affect hvm, probably not since qemu leaves the guest running and does a