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Logistic model in COMFIT function [message #93810]

Tue, 25 October 2016 13:37

bedroom330
Messages: 1
Registered: October 2016

Junior Member

Hi,

I am currently using the logistic model in COMFIT. The results are good; however, when I read the equation IDL uses for logistic model, I got confused. The equation is: y=1/(a0a1^x+a2). I can not understand why a0 and a1 are necessary? They can be combined as one empirical parameter. How does each of the empirical parameter work in this IDL function?

If you can provide any thought, I will greatly appreciate.

Thank you.

Sincerely,
Nick

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[Message index]

		Logistic model in COMFIT function By: bedroom330 on Tue, 25 October 2016 13:37
		Re: Logistic model in COMFIT function By: Dick Jackson on Wed, 26 October 2016 07:24
		Re: Logistic model in COMFIT function By: dcleuclidwl on Wed, 26 October 2016 07:28

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