R help - Sep 2013 - How can I draw a 3D diagram (persp) with these Infos

I want to have a 3D diagramm. My Information are:

   - x:Time ----- it could be 1:n (integer number)
   - Y:Frequency ---it could be 1:n like x

z:the value of z come from a function

*fft_amplitude <- function(x) {sqrt((Re(fft(x)))^2+(Im(fft(x)))^2)}*

**

The input values for this function should be read from a CSV file. How can
I draw a 3D diagram* *perspwith this infos?

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Hello,

This request looks very similar to:

http://stackoverflow.com/questions/18982662/showing-a-3d-diagram-in-r
http://stackoverflow.com/questions/18913143/non-numeric-argument-error-while-running-fft-on-a-matrix

Regards,
Pascal


2013/9/25 Babak Bastan <babakbsn@gmail.com>
> I want to have a 3D diagramm. My Information are:
>
>    - x:Time ----- it could be 1:n (integer number)
>    - Y:Frequency ---it could be 1:n like x
>
> z:the value of z come from a function
>
> *fft_amplitude <- function(x) {sqrt((Re(fft(x)))^2+(Im(fft(x)))^2)}*
>
> **
>
> The input values for this function should be read from a CSV file. How can
> I draw a 3D diagram* *perspwith this infos?
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Pascal Oettli
Project Scientist
JAMSTEC
Yokohama, Japan

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