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Re: CURVEFIT for multiple datasets [message #58471 is a reply to message #58463]

Thu, 31 January 2008 08:13

Paul Van Delst[1]
Messages: 1157
Registered: April 2002

Senior Member

chloesharrocks@gmail.com wrote:
> Hi Chris
>
> Thanks for your reply. I'm reluctant to use advanced fitting
> programmes as I'm an undergraduate trying to do an MPhys Project and
> I'd rather try and code as much as possible myself so I can get credit
> for it.

Strange approach. Your ultimate goal should be to get the correct answer. That's much
easier to do using software you can trust.

Besides, regardless of whether you use IDL's CURVEFIT, or Criag's MPFIT, you're still
using "advanced fitting programmes" that you can't take credit for. You can take credit
for writing the code that feeds those procedures the data, I guess.

> Luckily, I have found a way to do a fit for 2datasets now - by
> puttting them all into one big array, so hopefully I can extend this
> further so I put 2000+ datasets in one array and then fit an
> exponential to that new array.

What about taking the average of all your datasets (assume the same abscissa values) and
fit that using the std dev's of each point as an error estimate?

cheers,

paulv

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[Message index]

		Re: CURVEFIT for multiple datasets By: Wox on Fri, 01 February 2008 01:14
		Re: CURVEFIT for multiple datasets By: Spon on Thu, 31 January 2008 10:32
		Re: CURVEFIT for multiple datasets By: Paul Van Delst[1] on Thu, 31 January 2008 08:13
		Re: CURVEFIT for multiple datasets By: David Fanning on Thu, 31 January 2008 06:37
		Re: CURVEFIT for multiple datasets By: chloesharrocks on Thu, 31 January 2008 06:28
		Re: CURVEFIT for multiple datasets By: Spon on Thu, 31 January 2008 06:15

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