[R] Non-numeric argument to fft
rkevinburton at charter.net
rkevinburton at charter.net
Sat Aug 30 08:39:24 CEST 2008
I am calling fft and getting a "non-numeric" error:
+ fit <- lm(Quantity ~ DayOfYear, .sublist)
+ # Make the time series
+ x <- as.numeric(rep(0,512))
+ x <- merge(residuals(fit), x)
+ # Transform range to -pi - pi
+ x <- x - pi
+ x <- x * (2 * pi)/(max(x) - min(x))
+ fft(x)
Error in fft(x) : non-numeric argument
How can I tell what the non-numeric argument is? There is only one argument.
What am I doing wrong?
Thank you.
Kevin
>
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