Oliver Bandel wrote:
Hello,
I'm new to R (using it since about two weeks),
but absolutely a fan of it from the beginning on. :-)
Best tool for working with data I found. :-)
I tried using the fft() and other funcitons for
analysing time series.
What I would be glad to have, would be a
convenient way to display the complex result
of a fft in a way, that real and imaginary parts
each use an axis for themselves, and the index of the
resulting values use the third axe.
When displaying this as a 3D->2D picture,
it also would be nice, to change the view,
like it can be done with persp().
Is there already a package or script for preparing the data
of an fft to be displayed in this way?
I don't find this very enlightening, but here you go:
x <- rnorm(1000)
f <- fft(x)
library(rgl)
plot3d(1:length(f), Re(f), Im(f))
Duncan Murdoch
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