msherwood
2012-Jul-25 21:43 UTC
[R] Package 'nlme' linear mixed effects model error "unexpected symbol"
I am trying the following code with the 'nlme' package: 2007model<lme(Rank~Age*Mass+method='ML',random=~1|ID,na.action=na.exclude) I've also tried all kinds of variations of the above that I could think of. It gives me the error "unexpected symbol in '2007model' ". I'm not sure if this 'unexpected symbol' refers to the code I enter or the data table I am using. I haven't found any useful information in a Google search or in the R help files. Any suggestions of what the problem may be? -- View this message in context: http://r.789695.n4.nabble.com/Package-nlme-linear-mixed-effects-model-error-unexpected-symbol-tp4637842.html Sent from the R help mailing list archive at Nabble.com.
R. Michael Weylandt
2012-Jul-26 05:55 UTC
[R] Package 'nlme' linear mixed effects model error "unexpected symbol"
Variable names cannot start with numbers: [well, there's a way, but it's not a good idea] Instead you want model2007 <- lme(....) Also, probably need an arrow "<-" instead of a less than symbol. Michael On Wed, Jul 25, 2012 at 4:43 PM, msherwood <melissa.sherwood at gmail.com> wrote:> I am trying the following code with the 'nlme' package: > > 2007model<lme(Rank~Age*Mass+method='ML',random=~1|ID,na.action=na.exclude) > > I've also tried all kinds of variations of the above that I could think of. > > It gives me the error "unexpected symbol in '2007model' ". I'm not sure if > this 'unexpected symbol' refers to the code I enter or the data table I am > using. > > I haven't found any useful information in a Google search or in the R help > files. > > Any suggestions of what the problem may be? > > > > > > > > -- > View this message in context: http://r.789695.n4.nabble.com/Package-nlme-linear-mixed-effects-model-error-unexpected-symbol-tp4637842.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.
Steve Taylor
2012-Jul-26 20:33 UTC
[R] Package 'nlme' linear mixed effects model error "unexpected symbol"
This will work: model2007 <- You can't start an identifier with a digit. -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of msherwood Sent: Thursday, 26 July 2012 9:44a To: r-help at r-project.org Subject: [R] Package 'nlme' linear mixed effects model error "unexpected symbol" I am trying the following code with the 'nlme' package: 2007model<lme(Rank~Age*Mass+method='ML',random=~1|ID,na.action=na.exclude) I've also tried all kinds of variations of the above that I could think of. It gives me the error "unexpected symbol in '2007model' ". I'm not sure if this 'unexpected symbol' refers to the code I enter or the data table I am using. I haven't found any useful information in a Google search or in the R help files. Any suggestions of what the problem may be? -- View this message in context: http://r.789695.n4.nabble.com/Package-nlme-linear-mixed-effects-model-error-unexpected-symbol-tp4637842.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.