Re: [R] Fitting a Harmonic Function to Time Series Data

2011-10-14 Thread David Scott 

On 14/10/2011 1:00 a.m., ashz wrote:

Dear All,

I have some time series data where X=month and Y=nutrient concentration (I
can have several concentration data for one month). Is there a way to fit
for it an Harmonic Function. Is there a package, script,etc which I can use?

Thx




Possibly there is this functionality in Rob Hyndman's forecast package. 
See this post by him:

http://robjhyndman.com/researchtips/longseasonality/
which has some code which should also be of use.

David Scott


_
David Scott Department of Statistics
The University of Auckland, PB 92019
Auckland 1142,NEW ZEALAND
Phone: +64 9 923 5055, or +64 9 373 7599 ext 85055
Email:  d.sc...@auckland.ac.nz,  Fax: +64 9 373 7018

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[R] Fitting a Harmonic Function to Time Series Data

2011-10-13 Thread ashz 
Dear All,

I have some time series data where X=month and Y=nutrient concentration (I
can have several concentration data for one month). Is there a way to fit
for it an Harmonic Function. Is there a package, script,etc which I can use?

Thx
 


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