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two-gamma-variate fitting

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Hang Zeng
Hang Zeng el 26 de Jul. de 2021
Comentada: Hang Zeng el 29 de Jul. de 2021
Hi Matlab expert:
I am now trying to analysis my fMRI data using the two-gamma-variate fitting. Does any happen to have it ?

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Shadaab Siddiqie
Shadaab Siddiqie el 29 de Jul. de 2021
From my understanding you want to model above expression. You can use symbolic equation to model such expressions like so:
syms x
f = a*(x/(p*q))^p * exp(p-x/q) -b (x/r*s)^r * exp(r-x/s);
since in your case a, p, q, b, r and s are coefficients you have to pre-define it.
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Hang Zeng
Hang Zeng el 29 de Jul. de 2021
yes, I need to pre-define the coefficient. Thanks a lot!

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