[R] Constrained optimization

From: Kanak Choudhury <kanak562265_at_gmail.com>
Date: Tue, 08 Jul 2008 16:28:39 +0600


i have a function like

1+sin(a+bx) where -pi/2<=a+bx<=pi/2

i made a progrom using constrOptim() function but it is not giving good result. it depends on the initial value. but when i am doing simulation it is impossible of find the best initial value for every step. also i am not exactly sure how to input the restriction though i have read the help file of the function. here x is a set of values. would u please send me some instruction to find the best result from the obtimization.

Kanak Choudhury
sutdent of Jahangirnagar university
Bangladesh

mail: kanak562265_at_gmail.com

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