Hi,
I have more questions about the fft. The application in Excel is very
limited.
In Excel I can adjust graphs and calibrate the x and y-axis. The input and
process, however, is limited compared to R.
With a Dataset table where one column is the hour difference and the second
are the values w
Well, I would like to thank you all for your assisstance.
I am now progressing and detecting tidal signals in my radon time series.
I really appreciate this.
I am not stuck with research now.
Rthoughts wrote:
>
> EDIT: to assist you to assist me in turn, for which I am grateful, more
> detail
#look at dput this is an easy way to share
#data or another great way is to make a
#fake data series
x <- (c(105L, 115L, 140L, 180L, 230L, 300L, 360L, 418L, 450L, 480L,
495L, 500L, 495L, 480L, 450L, 410L, 360L, 300L, 230L, 180L, 140L,
115L, 105L, 100L, 105L, 115L, 140L, 180L, 230L, 300L, 360L, 410L
EDIT: to assist you to assist me in turn, for which I am grateful, more
detail than the below needs to be provided.
I open tables and view them using Rcmdr so they become active datasets. I am
assuming that x101, x100, etc, are column headings because when the dataset
is edited they can be change
have you read in the data? Have you made it a time series? Did you call it z?
?fft
?spectrum
On Mon, Oct 27, 2008 at 2:01 PM, Rthoughts
<[EMAIL PROTECTED]> wrote:
>
> Dear all,
>
> Before I can get into serious Fourier analysis of Radon time-series I am
> practising with 24hour and 24.8hour sin
Dear all,
Before I can get into serious Fourier analysis of Radon time-series I am
practising with 24hour and 24.8hour sinusoids to assist with my
interpretation of signals ittributed to tidal input to Radon time series.
I am stuck. I have tried researching this to no avail. I am awating a book
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