To follow Dieter's comment,
You can in fact fit a data to a sine in Excel using LINEST. I've done
it. I don't recommend it :-) .
What I did was create columns containing sin(x) and cos(x) , roughly
speaking, and fit using
LINEST([y=values],{sines, cosines},...)
Ya need the cosines or som
Ben Zuckerberg cornell.edu> writes:
> I have several sets of oscillation data and would like to estimate the
> parameters of a sine function to each set (and hopefully automate
> this).
There is an example using lme (yes, LINEAR) fit on page 239 of
Pinheiro/Bates Mixed Effects Book (ovarian
Ben Zuckerberg schrieb:
Greetings,
I have several sets of oscillation data and would like to estimate the
parameters of a sine function to each set (and hopefully automate
this). A colleague provided an excel sheet that uses solver to minimize
the RSS after fitting the sine function to each
Just a thought on this topic, I found Harminv quite powerful for this
sort of task. I wonder whether it could be wrapped into a R package
(it's GPL).
http://ab-initio.mit.edu/wiki/index.php/Harminv
On 20 Nov 2008, at 22:46, Prof Brian Ripley wrote:
See e.g.
http://finzi.psych.upenn.edu/R
See e.g.
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/131024.html
RSiteSearch() produced this and similar relevant past postings.
On Thu, 20 Nov 2008, Ben Zuckerberg wrote:
Greetings,
I have several sets of oscillation data and would like to estimate the
parameters of a sine function to
Greetings,
I have several sets of oscillation data and would like to estimate the
parameters of a sine function to each set (and hopefully automate
this). A colleague provided an excel sheet that uses solver to minimize
the RSS after fitting the sine function to each data set, but this
cumbe
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