| Re: Curve Fitting to timeseries using a set of 8 sine and cosine functions [message #89645 is a reply to message #89630] |
Tue, 04 November 2014 15:14  |
siumtesfai
Messages: 62
Registered: April 2013
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Member |
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Thanks both,
You helped me.
Best regards
On Sunday, November 2, 2014 11:49:10 PM UTC-5, Craig Markwardt wrote:
> On Friday, October 31, 2014 11:12:03 PM UTC-4, siumt...@gmail.com wrote:
>> My question is not resolved yet.
>>
>> Craig: Why you did not suggest me to use your MPFIT code for fitting my model.
>
> You can use MPFIT if you want. As you mentioned in the original post, you knew about MPFIT already, so why did I need to suggest it again?
>
> In any case, since an FFT does produce a least squares set of fourier coefficients, using MPFIT is kind of overkill.
>
> You said this,
>
>> I have attempted to used multiple linear regression to solve the problem .
>> However, when I plot the original data with fitted line, I did not find good
>> result.
>
> So - given your model - how do you know there is a better result?
>
> Craig
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