Silvia Balbinot
2002-Jul-01 15:53 UTC
[R] request information about a problem with an ARIMA function
<html><div style=''background-color:''><DIV></DIV> <DIV></DIV> <P>Hi! I''m an italian girl from Belluno and I''ve been using R since January but, now, I''ve got a problem:</P> <P>I''m using the function ARIMA for the prediction of a time serie and I want to know how can I see the fitted values: when I used the funtion <FONT color=#ff0033>lm for linear regression</FONT><FONT color=#000000> I wrote, for example, xxx$fitted.values so I saw the values of the model.</FONT></P> <P>Whit ARIMA function I try to write a lot of names such as:</P> <P>xxx$fitted.values xxx$values xxx$prediction ..... and so on but, I didn''t find the values obtained by the ARIMA model and I don''t know what I have to do.</P> <P>Now I''m using R 1.5.0.</P> <P>Please write me soon<BR><FONT face="Lucida Handwriting, Cursive"></FONT></P> <P><FONT face="Lucida Handwriting, Cursive">Silvia</FONT> </P> <DIV></DIV></div><br clear=all><hr>MSN Hotmail è il provider email più grande al mondo… cosa aspetti a farti un account? <a href=''http://g.msn.com/1HM1ITIT/c157??PI=44398''>Fai clic qui</a><br></html> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
ripley@stats.ox.ac.uk
2002-Jul-01 16:16 UTC
[R] request information about a problem with an ARIMA function
On Mon, 1 Jul 2002, Silvia Balbinot wrote:> > Hi! I'm an italian girl from Belluno and I've been using R since January > but, now, I've got a problem: > > I'm using the function ARIMA for the prediction of a time serie and I > want to know how can I see the fitted values: when I used the funtion lm > for linear regression I wrote, for example, xxx$fitted.values so I saw > the values of the model.Not a good idea. Call fitted(myfit) etc.> Whit ARIMA function I try to write a lot of names such as: > > xxx$fitted.values xxx$values xxx$prediction ..... and so on but, I > didn't find the values obtained by the ARIMA model and I don't know what > I have to do.I presume you are using arima from package ts: R names are case-sensitive. ?arima has a section `Value' telling you what is returned. Note though that time series models don't really have fitted values, as prediction at the current time will be exact. -- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._