I am trying to work with a time series of one observation every fifteen
minutes for a length of two years.  My question really lies in how to code
the timeseries to represent every observation is a fifteen minute interval.
Below is the code that I used any help would be appreciated.

> x<-read.table("doconc.txt", header=TRUE)
> x<-ts(x[,1], start=0, frequency=1/15)
>  plot(stl(x, s.window="periodic"))

Error in stl(x, s.window = "periodic") :
series is not periodic or has less than two periods

Thanks

Stephen

-- 
Let's not spend our time and resources thinking about things that are so
little or so large that all they really do for us is puff us up and make us
feel like gods.  We are mammals, and have not exhausted the annoying little
problems of being mammals.

-K. Mullis

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