search for: armasim

Hello! I installed the fSeries package to get some farima time-series which i tried with farimaSim, but unfortunately i got always an error. I tried it this way: > farimaSim(n = 1000, model = list(ar = 0.5, d = 0.3, ma = 0.1), method="freq") Error in farimaSim(n = 1000, model = list(ar = 0.5, d = 0.3, ma = 0.1), : ... used in an incorrect context Some ideas? Regards, ___

Hello, I am getting the following error message from unitrootTest. Do you have any clue of what could be wrong. Details: AMD64 (x86_64) Gentoo Linux system. library(fSeries) kmodel <- list(ar=c(.3,0,0,0,0.7,-.4*.7),d=1) x=armaSim(nobs,model=kmodel) unitrootTest(x,trend="c",statistic="t",method="adf",lags=2) Error in file(file, "r") : unable to open connection In addition: Warning message: cannot open file `library/fSeries/libs/.urc1.tab' Thank you very much Roberto -- Roberto...

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 --------------------------------- [[alternative HTML version deleted]]

Hi, I got some problem running the example of arfimaOxFit. The first three line of the examples I run are: library(Rmetrics) x = armaSim(model = list(ar = c(0.5, - 0.5), d = 0.3, ma = 0.1), n = 500) fit = arfimaOxFit(formula = x ~ arfima(2,1)) The error msg is: Error in eval(expr, envir, enclos) : object "package" not found Did I do something wrong? Should I install OxConsole with "Arfima" Package? Thanks in ad...

Dear All, I have a short question. Is there any readily available function that could generate either an ARMAX model or, more generally, an AutoRegressive Distributed Lag model? I am looking for a function that is similar to armaSim() function in fArma package. Thank you. MP