On Mon, 2003-06-09 at 03:56, Prof Brian Ripley wrote: > You have a scoping problem: the predict method needs to find the data: > please supply an explicit newdata argument. Your first example works > because `y' happens to be globally visible and be the right object. > Thanks. That makes sense.
> On 9 Jun 2003, zhu wang wrote: > > > I am trying to write a function to return prediction values using > > package ts. I have written three different versions since I am not sure > > what's wrong with my func2. func and func1 return the same results.But > > func1 and func2 don't. In particular, the only difference between > > "func1" and "func2" is the function variable name being y and data, > > respectively. But running the last line of the following script will > > give the message: > > > > Error in ts(x): object is not a matrix. > > > > I am confused. Also, could somebody kindly let me what's the answer if > > any for the following sunspot example from the package help: > > > > data(sunspot) > > (sunspot.ar <- ar(sunspot.year)) > > # why not just sunspot.ar <- ar(sunspot.year) ? > > Have you tried it? Please do so, and you will learn the difference! > This idiom is widely used in the R help files. > I have tried it before but now I know the trick here. > > predict(sunspot.ar, n.ahead=25) -- zhu wang <[EMAIL PROTECTED]> ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help