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Newton-Raphson
May I know how to apply Newton-Raphson Method in Excel to get the value of αi and βj???
Log L(α,β) = ∑∑(-αiβj + Xij log(αiβj) - log(Xij!))
∂log L / ∂αi = ∑(-βj + Xij / αi)
αi = ∑Xij / ∑βj
∑αi = ∑βj
Link to refer the picture question
Last edited by ryusukekenji; 03-23-2009 at 04:26 PM.
Reason: add hyperlink
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