alright this is what you want to do.
install.packages("fields", dependencies=TRUE)
tim.colors is in this package and it has a blue to red color scheme-
blue being the lowest and red being the highest. This color scheme
makes sense to me and is a common thing that a people (read engineers)
familar
Take a look at the xts package.
?periodicity
HTH
Jeff
yk-4 wrote:
>
> There is a series of data contains time in fixed step and energy
> varying with time, how to test its periodicity?In R, it seems there is
> no direct tools since I have search the R manual with periodic and I
> have not foun
all of the functions that I listed are time series tools for looking
at what I think you want. this can be done you just have to
understand the methodology. So, look at some of the things that I
suggested, If these don't help then I don't understand what you want,
and it is necissary for you to
The data I mentioned above is oscilating vs time，but there are not
obersevable fixed cycle if I just plot this data.
How to get the average cycle，or the most probable range of cycle with
statistical methods?
I don't know how to achieve it by R, is there any command?
On Sep 11, 10:52 am, "stephen
?spectrum
?acf
?ccf
library(wmtsa)
?wavCWT
library(sowas)
?wsp
you could also look at lagged plots to look for periodicity.
if you elaborate on the problem and include executable sample code you
will probably recieve more help.
On Wed, Sep 10, 2008 at 10:02 PM, yk <[EMAIL PROTECTED]> wrote:
> The
There is a series of data contains time in fixed step and energy
varying with time, how to test its periodicity?In R, it seems there is
no direct tools since I have search the R manual with periodic and I
have not found any related topic.
Thanks a lot
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