Displaying 4 results from an estimated 4 matches for "vedovelli".
2006 Dec 08
5
Remove " from a string
Hi all!
I have lots of functions called in the following pattern
'NameOfFunctionNumber' where the name always stays the same and the number
varies from 1 to 98.
Another function which I run in advance returns the number of the function
which has to be called next.
Now I want to combine 'NameOfFunction' with the 'Number' returned so that i
can call the desired function.
I
2006 Nov 23
1
ARMAX Models in R
Hi,
I want to model different timeseries with ARMAX models in R because I think
that ARMAX models will map best to these data.
Besides I don't want to use the order of the AR or MA part but the lag e.g.
AR Part =ar1, ar2, ar7; MA Part =ma1, ma3 and I want to use exogenous
variables as well.
I coudn't find any solutions in the R help and therefore I want to ask all
of you.
Does anyone
2007 Apr 04
0
to findout maximized log likelihoods by using rlarg.fit (for several r order statistics)
...e
> definite
> (Douglas Bates)
> 40. Re: Coding for contrasts in unbalanced designs
> (Peter Dalgaard)
> 41. Testing random effect in logistic mixed model
> (Julien)
> 42. Re: treenet (Weiwei Shi)
> 43. problems with residuals of an arima model
> (Katharina Vedovelli)
> 44. Re: lmer, CHOLMOD warning: matrix not positive
> definite
> (Seyed Reza Jafarzadeh)
> 45. Re: Generate a serie of new vars that
> correlate with existing
> var (Nguyen Dinh Nguyen)
> 46. Optimization and simulation (Jin Huang)
> 47. REPLACE and REM...
2007 Apr 03
0
problems with residuals of an arima model
Hi all!
I want to fit a time series with 17376 values by using the arima() function.
If I extract the residuals from the fitted model there are values for the
residuals 1 to 710 but the residuals 711 to 17376 have the value NA.
Does anybody know what the problem could be? Is the function arima()
restricted to a maximum length of the underlying time series?
Besides, is there a better possibility