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2009 Apr 21
1
How to compare parameters of non linear fitting curves
Hi,
I'm using a non linear model to fit experimental survival curves.
This model describes the fraction of "still active" experiments as a
function of time t as follows:
f(t)=(1+exp(-etaD*cD)) / (1+exp(etaD(t-cD)))
Moreover, when experiments are still active, they may change of state
(from 0 to 1). But they may fall inactive before changing their state
(their state still equals 0). The survival curve of state may also be
fitted with the following model:
f(A)=(1+exp(-eta1*c1))...
2009 Apr 22
0
Rép : How to compare parameters of non linear fitting curves - COMPLETE REPLY -
...encer
>
> Etienne Toffin wrote:
>> Hi,
>>
>> I'm using a non linear model to fit experimental survival curves.
>>
>> This model describes the fraction of "still active" experiments as
>> a function of time t as follows:
>> f(t)=(1+exp(-etaD*cD)) / (1+exp(etaD(t-cD)))
>>
>> Moreover, when experiments are still active, they may change of
>> state (from 0 to 1). But they may fall inactive before changing
>> their state (their state still equals 0). The survival curve of
>> state may also be fitted with...