similar to: Help in ARIMA

Displaying 20 results from an estimated 1000 matches similar to: "Help in ARIMA"

2006 Jul 18
4
add dataset
Hi, a simple question.. is add dataset not part of zonecfg ? global# zonecfg -z myzone (OK) zonecfg:myzone> add dataset (fails as there is no dataset option) zonecfg:myzone> add zfs (fails as there is no dataset option) Basically how do I add a dataset to a zone ? Thanks Roshan please cc me pererar at visa.com
2010 Feb 04
18
unionfs help
Is it possible to emulate a unionfs with zfs and zones somehow? My zones are sparse zones and I want to make part of /usr writable within a zone. (/usr/perl5/mumble to be exact) I can''t just mount a writable directory on top of /usr/perl5 because then it hides all the stuff in the global zone. I could repopulate it in the local zone but ugh that is unattractive. I''m hoping
2013 Jun 25
2
Help installing Dovecot 1.0 on Debian 6.0.7
Hi, Could someone please let me know if I can get the pre-built binaries for Dovecot 1.0 for Debian 6.0? If I do "apt-get install dovecot...", I am getting Dovecot v1.2.5 installed, but it doesn't like the existing Dovecot 1.0 configuration I have, and due to some urgency, I am trying to avoid migrating the configuration to the new structure / requirements. Regards, Roshan
2006 Apr 04
14
Problem with masquerading and bridges
Hello all, I''m somewhat new to networking, and I''m having trouble masquerading connections that are coming over a bridge. The bridge only has a single port for now, but I''m going to add more ports later. I''m basing my configuration on the two-interface quick start guide. I''m using Shorewall 3.0.4 on Ubuntu Dapper. My network looks like this: * The
2008 Mar 21
1
tseries(arma) vs. stats(arima)
Hello, The "arma" function in the "tseries" package allows estimation of models with specific "ar" and "ma" lags with its "lag" argument. For example: y[t] = a[0] + a[1]y[t-3] +b[1]e[t-2] + e[t] can be estimated with the following specification : arma(y, lag=list(ar=3,ma=2)). Is this possible with the "arima" function in the
2009 Oct 22
1
arima crashes too
Another pathological test. arima does not crash for that series that crashes arma: arima(c(2.01, 2.22, 2.09, 2.17, 2.42), order=c(1,0,0)) However, arima crashes for this: arima(c(1.71, 1.78, 1.95, 1.59, 2.13), order=c(1,0,0)) arima seems pretty consistent in its crashing behaviour, since crashing for one series means crashing for all affine series: lets.crash.arima <- c(71, 78, 95, 59,
2011 Jan 03
1
ARIMA simulation including a constant
Hi, I have been looking at arima.sim to simulate the output from an ARMA model fed with a normal and uncorrelated input series but I cannot find a way to pass an intercept / constant into the model. In other words, the model input in the function allows only for the AR and MA components but I need to pass a constant. Can anyone help? Thanks Paolo [[alternative HTML version deleted]]
2001 Dec 16
3
Arima
I did a regression with ARMA errors using arima0 with ari<-arima0(y,order=c(2,0,2),xreg=reg1,delta=-1) or ari<-arima0(y,order=c(2,0,2),xreg=reg1) where reg1 is the matrix of the regressors and when I see diag(ari$var.coef) I get negative terms. Do you know what this mean ? I try to change transform.pars to 0 or 1 but this crash R on Windows. Is it possible to test the significativity
2014 Apr 07
1
{CentOS} HDD Problem....
Ok....so after installing "smartmontools" on my CentOS machine...and connectiing this drive externally...i got positive reports from both the short and long tests...so the drive can obviously be "seen"....but when I look for it in the /dev/ directory...it doesn't show up.....I'm about to give the fdisk command line tools anonther shot....it allows me to format the
2009 Apr 26
1
simulate arima model
I am new in R. I can simulate Arma, using Arima.sim However, I want to simulate an Arima Model. Say (1-B)Zt=5+(1-B)at. I do not know how to deal with 5 in this model. Can any one could help me? Thank you very much! Regards, -- View this message in context: http://www.nabble.com/simulate-arima-model-tp23239027p23239027.html Sent from the R help mailing list archive at Nabble.com.
2006 Apr 22
3
Sipura SP3000 question
Hi, all I finally got myself one of those SIPURA boxes. It is labeled as Linksys, but this is actually a SP3000 box. Anyway, unit has lots of configuration parameters. Not all are obvious. At the moment it registers against my *, but all the calls I do from analog phone connected to it, go to VoIP channel. As this part is still in testing, I want all the outgoing calls got to PSTN by default
2002 Mar 08
4
ARMA and ARIMA modeling
I'd like to play with ARIMA models of stock prices, but I am a complete novice. Could some kind soul explain the relationship among packages "ts", "tseries", "dse", "dse2", and "fracdiff"? Are they 'competing' products or does one depend on another? Where would be the best place for a novice to begin? Thanks for any advice. PS. I
2010 Mar 17
1
Reg GARCH+ARIMA
Hi, Although my doubt is pretty,as i m not from stats background i am not sure how to proceed on this. Currently i am doing a forecasting.I used ARIMA to forecast and time series was volatile i used garchFit for residuals. How to use the output of Garch to correct the forecasted values from ARIMA. Here is my code: ###delta is the data fit<-arima(delta,order=c(2,,0,1)) fit.res <-
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 21
1
How to find residual in predict ARIMA
Dear All, I have a model to predict time series data for example: data(LakeHuron) Lake.fit <- arima(LakeHuron,order=c(1,0,1)) then the function predict() can be used for predicting future data with the model: LakeH.pred <- predict(Lake.fit,n.ahead=5) I can see the result LakeH.pred$pred and LakeH.pred$se but I did not see residual in predict function. If I have a model: [\ Z_t =
2005 Oct 13
1
arima: warning when fixing MA parameters.
I am puzzled by the warning message in the output below. It appears whether or not I fit the seasonal term (but the precise point of doing this was to fit what is effectively a second seasonal term). Is there some deep reason why AR parameters ("Warning message: some AR parameters were fixed: ...") should somehow intrude into the fitting of a model that has only MA terms? >
2009 Aug 17
1
[Fwd: Re: R code to reproduce (while studying) Bates & Watts 1988]]]
Kevin Wright wrote: > library(nlme) > m2 <- gnls(conc ~ t1*(1-t2*exp(-k*time)), > data = df.Chloride, > start = list( > t1 = 35, > t2 = 0.91, > k = 0.22)) So my error was to use nls instead that gnls. Thanks a lot, Kevin. > summary(m2) > plot(m2) > lag.plot(resid(m2), do.lines=FALSE) >
2005 Nov 15
1
Linear model mixed with an ARIMA model
Dear all, I'm looking for how can I input a linear model with an arma model,like log(y) = 8.95756 + 0.0346414^t - 0.1*t^2 + ut ut=-0.296ut-1+at-0.68at-1 where log(y) is qudratic function ,for the time series trend, and get then get the residuals from the first function. " obersvations value - the fit value = ut" and fit an ARIMA(1,1,1) model for ut.
2005 Nov 21
1
arima prediction
x<-c(-1.873....,-0.121) # 23 numerics; x.arma12 <- armaFit(x ~ arma(1,2)) #estimates y[t]= -0.11465 - 0.23767 y[t-1] - 0.14230 e[t-1] -0.85770 e[t-2] + e[t]; # ? how to predict 46 steps ahead based on 23 data points? # the following doesn't work since n is in armaSim rather than armaFit; predict(x.arima12, n.ahead=46) # Thanks ---------------------------------