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fmincon start point

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Mouloud
Mouloud el 17 de Jun. de 2011
hi, I use fmincon function to resolve my problem, but the difficulty is : I have many variables in my objective function and it is very difficult to find a start point? if I use a random x0, the solution isn't optimal !
thinx

Respuestas (2)

Mouloud
Mouloud el 17 de Jun. de 2011
The length (x0) more than 1000 and I used the random start point but solutions are not interest ( there are bad locals optimums) (I tried a multi start point) how to choose an intelligent start point to find an interesting local optimum ? I know where I can put a zero in x0 to find the local optimum but I don't have an explication for that :-(
cordially

Walter Roberson
Walter Roberson el 17 de Jun. de 2011
If you can, it would be better for you to switch to the Global Optimizer Toolbox and use one of the routines from that; see the function guide
  1 comentario
Mouloud
Mouloud el 20 de Jun. de 2011
hi;
I trying to use multistart point (rmsearch) but it is difficult to find a global minimum. In fact , I need an intelligent multistart.

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