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Re: sigma values of polyfit and svdfitr [message #83801 is a reply to message #83610]

Mon, 01 April 2013 08:53

Andy Sayer
Messages: 127
Registered: February 2009

Senior Member

Going back to my first reply: what exactly do you mean by 'fitting error'? If you mean the difference between observations and fitted values, then yes, you will find it by looking at the difference between observations (input data) and fitted values (returned by yfit).

AMS

On Monday, April 1, 2013 1:22:47 AM UTC-4, gunvi...@gmail.com wrote:
> On Monday, March 18, 2013 11:56:09 AM UTC+5:30, gunvi...@gmail.com wrote:
>
>> Hello everyone,
>
>>
>
>> Please let me know how to use the sigma values and returned in polyfit and svdfit to find the fitting error. Its very important for my work.
>
>>
>
>> Please help me out in this respect.
>
>>
>
>> thanking you in advance,
>
>>
>
>> sid
>
>
>
> Hello sir,
>
> So if suppose I am fitting a guassian for a emission profile the (maximum value - fitted maximum) will give the fitting error.
>
> am I correct.
>
> Please let me know.
>
> thanking you
>
> sid

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[Message index]

		sigma values of polyfit and svdfitr By: gunvicsin11 on Sun, 17 March 2013 23:26
		Re: sigma values of polyfit and svdfitr By: Phillip Bitzer on Tue, 02 April 2013 15:18
		Re: sigma values of polyfit and svdfitr By: gunvicsin11 on Mon, 01 April 2013 21:58
		Re: sigma values of polyfit and svdfitr By: Andy Sayer on Mon, 01 April 2013 08:53
		Re: sigma values of polyfit and svdfitr By: gunvicsin11 on Sun, 31 March 2013 22:22

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