[R] help with ets function in forecast package

From: sj <ssj1364_at_gmail.com>
Date: Fri 19 Jan 2007 - 17:57:24 GMT


 I have been trying to use the ets function in the forecast package on a daily time series (ts2 is a ts object with frequency =7). However when I run the following code I get an error related to etsmodel. I have looked at ets and I can see that there is a call to the function etsmodel, but I cant seem to find info on the ets function anywhere. Does anyone know anything about the etsmodel function?

this is a sample data set with sample code

library(forecast)

ts2 <- ts(c(67,55,55,59,65,74,80,56,40,59,54,96,67,66,80,58,61,53,
76,74,67,47,63,57,54,67,85,81,70,68,53,60,72,70,60,66,
73,65,67,81,94,59,71,67,76,61,79,78,82,85,60,69,51,68,
88,70,70,53,63,70,77,79,63,74,72,85,69,85,79,75,71,61,
68,68,80,72,70,82,80,53,71,88,76,71,57,65,68,67,73,95,
94,68,64,67,65,85,92,73,67,57,58,69,82,82,76,67,77,74),frequency=7)

ets(ts2)

I get the following error:

[1] "Model: ETS(A,N,A)"
Error in etsmodel(y, errortype[i], trendtype[j], seasontype[k], damped[l], :

        Parameters out of range

Any help would be appreciated.

thanks,

Spencer

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