I am still having a problem with my coercing my data frame (tkr) into a time series using ts to use the stl function. When I read the data into R and do dim tkr the result is 132 1, when I type class I get (data.frame). I have tried several methods so far to to coerce it into a a time series and use the stl function,( see thread) . A suggestion was to use the following: tstkr <- ts(as.numeric(tkr), deltat=1/12) before using the stl function, however I now get this error message: Error in as.double.default(tkr) : (list) object cannot be coerced to 'double' I don't know what this means....does anybody have any other ideas...? Hope I have put enough information on here for people to be able to help..if not let me know, also if anyone wants to send me to email them my data then I am happy to do so.. Thanks to everyone who has tried to help so far much appreciated...
Spencer Graves <[EMAIL PROTECTED]> wrote: The 'ts' function retains the 'dim' attribute of 'tkr'. When 'stl' finds this 'dim' attribute, it thinks 'tstkr' is a multivariate time series. This causes it to stop with the error, "only univariate series allowed". Consider the following modification of an example from the 'stl' help file: > not.1 <- stl(nottem, "per") > Nottem <- ts(array(nottem, dim=c(240, 1))) > Not.1 <- stl(Nottem) Error in stl(Nottem) : only univariate series are allowed Solution: tstkr <- ts(as.numeric(tkr), deltat=1/12) After converting tkr and tstkr from a matrix to a vector like this, please try 'stl(tstkr)'. If it doesn't work, please submit another post. Hope this helps. Spencer Graves p.s. Your example was not quite self-contained, because I didn't know for sure the format, class, and attributes of your 'tkr' object. The absence of these details made it harder for me (and, I believe, anyone else) to reply. You might get better replies quicker with greater attention to such details. Daniel sutcliffe wrote: > Hi > > I am still having problems with using the stl function, when I read the csv file into R into a file called tkr and use dim(tkr) the result is 132 x 1 which is fine. > > When coerce it into a trime series using ts either: > > > tstkr <- ts(t(tkr), deltat=1/12) or > > tstkr <- ts(c(tkr), deltat=1/12) > > and use the stl function I get the following error: > > Error in stl(tstkr) : only univariate series are allowed > > id just use the tkr file I get the same error..does anyibe have an idea what > to do next, here is my data...it's not sensitive so if anyone wants to try > then you are very welcome! > Rate 184.0222 180.517 222.5792 173.5066 192.7852 198.0429 182.2696 189.28 > 178.7644 206.8059 236.6 155.9807 231.7314 249.2868 222.9537 198.3761 201.8872 > 208.9094 242.2646 221.1982 228.2203 245.7757 244.0202 194.865 239.3664 > 234.0862 251.6867 235.8463 197.1253 237.6063 267.5271 228.8061 241.1264 > 249.9267 256.9669 188.325 258.8788 239.5069 214.8518 234.2237 211.3296 > 234.2237 237.7458 156.7361 239.5069 225.4183 257.1177 170.8248 230.1611 > 265.3001 296.9253 193.265 233.675 240.7028 249.4876 205.5637 237.1889 > 237.1889 289.8975 245.9736 283.1755 316.3875 372.3234 234.2316 263.9476 > 314.6395 286.6715 272.6875 323.3795 295.4115 300.6555 174.7997 227.184 > 277.4767 317.364 234.121 286.1478 279.2109 280.9452 235.8552 319.0982 > 296.5532 303.4901 173.4229 302.6072 312.8651 389.7991 223.9635 254.7371 > 329.9615 288.93 317.994 312.8651 381.2509 333.3808 194.8996 285.5743 304.0526 > 335.9698 307.4123 346.0489 288.934 335.9698 243.5781 384.6854 359.4876 > 357.8078 221.74 336.3712 344.6562 389.3952 286.6611 338.0282 407.6222 > 356.2552 241.9221 347.9702 400.9942 381.1102 304.8882 383.9077 418.5089 > 476.1774 331.1822 378.9647 375.6694 339.4206 364.1357 420.1565 446.5193 > 410.2705 296.5811 > > Cheers and thanks to everyone who offered suggestions before. > > Daniel > > > > > > SAULEAU Erik-André wrote: > Perhaps ts(t(tkr))? > >> -----Message d'origine----- >> De : Daniel sutcliffe [mailto:[EMAIL PROTECTED] >> Envoyé : mercredi 12 juillet 2006 15:53 >> À : [email protected] >> Objet : [R] ts and stl functions >> >> >> Hi, >> >> I have imported a csv file into R which contains one column >> (the rate er 100,000 population of a disease, by month over >> 11 years) I coerced into a time series using the following function, >> >> tstkr<-ts(tkr,deltat=1/12) >> >> This seems to work fine, and when I check for the class of >> the object using class(tstkr) I get "ts" as the response. >> >> When I try to use the stl function in stats I get the error message: >> >> Error in stl(tstkr)only univariate series are allowed >> >> I then tried this: >> >> tstkr <- ts(c(tkr), deltat=1/12) >> >> however this made no difference...I still get an error - does >> anybody know what is wrong? >> >> Regards, >> >> Daniel >> >> >> --------------------------------- >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> [email protected] mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read >> the posting guide! http://www.R-project.org/posting-guide.html >> >> >> ************************************************************** >> ******************** >> Afin d'eviter toute propagation de virus informatique, et en >> complement >> des dispositifs en place, ce message (et ses pieces jointes >> s'il y en a) >> a ete automatiquement analyse par un antivirus de messagerie. >> ************************************************************** >> ******************** >> > > > ********************************************************************************** > Afin d'eviter toute propagation de virus informatique, et en complement > des dispositifs en place, ce message (et ses pieces jointes s'il y en a) > a ete automatiquement analyse par un antivirus de messagerie. > ********************************************************************************** > > > > > --------------------------------- > > [[alternative HTML version deleted]] > > > > ------------------------------------------------------------------------ > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html --------------------------------- [[alternative HTML version deleted]]
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