R help - Aug 2013 - lme: object is not a matrix

Dear all,

 

when running in R a simple lme call (3 variables in data set) which
works perfectly fine in S-PLUS, I keep getting the error message

 

" Error in model.frame.default(formula = ~t + can2p + code, data = list(
: 

  object is not a matrix"

 

Any help would be very much appreciated.

 

Thanks.

 

Bernd 

 


	[[alternative HTML version deleted]]

R is not splus. Read ?lme.

Bert

Sent from my iPhone -- please excuse typos.

On Aug 2, 2013, at 5:45 AM, "Puschner, Bernd" <Bernd.Puschner at
bkh-guenzburg.de> wrote:
> Dear all,
> 
> 
> 
> when running in R a simple lme call (3 variables in data set) which
> works perfectly fine in S-PLUS, I keep getting the error message
> 
> 
> 
> " Error in model.frame.default(formula = ~t + can2p + code, data =
list(
> : 
> 
>  object is not a matrix"
> 
> 
> 
> Any help would be very much appreciated.
> 
> 
> 
> Thanks.
> 
> 
> 
> Bernd 
> 
> 
> 
> 
>    [[alternative HTML version deleted]]
> 
> ______________________________________________
> 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.

Hi, 

make sure your data is in a data frame:

Data <- data.frame(t,can2p,code)

just specify in which object you find those specific variables by using 
object$ before each one.

I hope this solve the problem. If not, post your script, it's really hard 
to work with only an error message!

Cheers

JM