nonlinear curve fitting with equal and unequal constrains
in [Matlab]
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From: Moshe Averbukh on 10 Oct 2009 09:13 Hello, I need to fit the group of experimental points (X,Y) by special function where I have to find the coefficients which will give the minimum of leastsquareroot. The problem is that some of the coefficients related one with another by constrains. The standard function such as lsqnonlin could'n be applied because it hasn't constrained options. Thanks in advance
From: John D'Errico on 10 Oct 2009 09:35 "Moshe Averbukh" <averbm(a)gmai.com> wrote in message <haq18t$abt$1(a)fred.mathworks.com>... > Hello, > I need to fit the group of experimental points (X,Y) by special function where I have to find the coefficients which will give the minimum of leastsquareroot. The problem is that some of the coefficients related one with another by constrains. The standard function such as lsqnonlin could'n be applied because it hasn't constrained options. > Thanks in advance So use fmincon. WTP? John
From: Moshe Averbukh on 10 Oct 2009 12:35 First of corse thanks, But how can I enter a vector of (X,Y) to the script of the fmincon? "John D'Errico" <woodchips(a)rochester.rr.com> wrote in message <haq2i5 $23h$1(a)fred.mathworks.com>... > "Moshe Averbukh" <averbm(a)gmai.com> wrote in message <haq18t$abt$1(a)fred.mathworks.com>... > > Hello, > > I need to fit the group of experimental points (X,Y) by special function where I have to find the coefficients which will give the minimum of leastsquareroot. The problem is that some of the coefficients related one with another by constrains. The standard function such as lsqnonlin could'n be applied because it hasn't constrained options. > > Thanks in advance > > So use fmincon. WTP? > > John
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