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From: Venkataraman on 23 Jul 2010 09:35
Hi,
i am trying to optimize 2 functions each having 5 variables. the code i wrote is as follows
function f = edm(x)
f(1) = 108.049 - 26.5842*x(1) + 0.801646*x(2) - 141.888*x(3) - 0.371658*x(4) + 0.0366417*x(5) + 2.83293*(x(1)^2) -(0.0469063*x(1)*x(2)) + (9.00625*x(1)*x(3)) - (0.000842188*x(1)*x(4)) + (0.0172187*x(1)*x(5))- (0.0000218018*(x(2)^2)) - (0.339688*x(2)*x(3)) - (0.000877344*x(2)*x(4)) - (0.000664063*x(2)*x(5)) + (116.293*(x(3)^2)) + (0.0942187*x(3)*x(4)) - (0.00809375*x(3)*x(5)) + (0.00119558*(x(4)^2)) + (0.000363281*x(4)*x(5)) - 0.00150518*(x(5)^2);
f(2) =-[-0.985466 + (0.151912*x(1)) - (0.00642768*x(2)) + (3.08858*x(3)) - (0.000251344*x(4)) - (0.00216784*x(5)) - (0.0344143*(x(1)^2)) + (0.00035*x(1)*x(2)) + (0.02125*x(1)*x(3)) + (0.00114688*x(1)*x(4)) + (0.0000375*x(1)*x(5)) +(0.0000464643*(x(2)^2)) + (0.0020625*x(2)*x(3)) - (0.00000921875*x(2)*x(4)) + (0.00001125*x(2)*x(5))- (3.44143*(x(3)^2)) + (0.002375*x(3)*x(4)) - (0.0020625*x(3)*x(5)) - (0.0000121339*(x(4)^2)) + (0.00000859375*x(4)*x(5)) + (0.0000152143*(x(5))^2)];

Lower Bounds [3,30,0.4,-200,20]
Upper bounds [5,70,0.6,-120,60]

When i run the code, i get the following error
In an assignment A(I) = B, the number of elements in B and
I must be the same.

But when i tried to remove a few terms from my function and shorten it, i was getting the pareto front without any problems. Clearly, this is not a solution to my problem. Any help or suggestions would be apprecated.

when i run this code, i get the error message
From: Steven_Lord on 23 Jul 2010 09:58


"Venkataraman " <r.venkat0311(a)gmail.com> wrote in message
news:i2c5qr$bhi$1(a)fred.mathworks.com...
> Hi,
> i am trying to optimize 2 functions each having 5 variables. the code i
> wrote is as follows
> function f = edm(x)
> f(1) = 108.049 - 26.5842*x(1) + 0.801646*x(2) - 141.888*x(3) -
> 0.371658*x(4) + 0.0366417*x(5) + 2.83293*(x(1)^2) -(0.0469063*x(1)*x(2))
> + (9.00625*x(1)*x(3)) - (0.000842188*x(1)*x(4)) + (0.0172187*x(1)*x(5))-
> (0.0000218018*(x(2)^2)) - (0.339688*x(2)*x(3)) - (0.000877344*x(2)*x(4)) -
> (0.000664063*x(2)*x(5)) + (116.293*(x(3)^2)) + (0.0942187*x(3)*x(4)) -
> (0.00809375*x(3)*x(5)) + (0.00119558*(x(4)^2)) + (0.000363281*x(4)*x(5)) -
> 0.00150518*(x(5)^2);
> f(2) =-[-0.985466 + (0.151912*x(1)) - (0.00642768*x(2)) +
> (3.08858*x(3)) - (0.000251344*x(4)) - (0.00216784*x(5)) -
> (0.0344143*(x(1)^2)) + (0.00035*x(1)*x(2)) + (0.02125*x(1)*x(3)) +
> (0.00114688*x(1)*x(4)) + (0.0000375*x(1)*x(5)) +(0.0000464643*(x(2)^2)) +
> (0.0020625*x(2)*x(3)) - (0.00000921875*x(2)*x(4)) +
> (0.00001125*x(2)*x(5))- (3.44143*(x(3)^2)) + (0.002375*x(3)*x(4)) -
> (0.0020625*x(3)*x(5)) - (0.0000121339*(x(4)^2)) +
> (0.00000859375*x(4)*x(5)) + (0.0000152143*(x(5))^2)];

Since you're assigning the output of this computation to f(2), the
right-hand side must be a scalar. Remove the square brackets (or if you
need them for grouping, replace them with parentheses.)

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
http://www.mathworks.com

From: Venkataraman on 23 Jul 2010 13:40
"Venkataraman " <r.venkat0311(a)gmail.com> wrote in message <i2c5qr$bhi$1(a)fred.mathworks.com>...
> Hi,
> i am trying to optimize 2 functions each having 5 variables. the code i wrote is as follows
> function f = edm(x)
> f(1) = 108.049 - 26.5842*x(1) + 0.801646*x(2) - 141.888*x(3) - 0.371658*x(4) + 0.0366417*x(5) + 2.83293*(x(1)^2) -(0.0469063*x(1)*x(2)) + (9.00625*x(1)*x(3)) - (0.000842188*x(1)*x(4)) + (0.0172187*x(1)*x(5))- (0.0000218018*(x(2)^2)) - (0.339688*x(2)*x(3)) - (0.000877344*x(2)*x(4)) - (0.000664063*x(2)*x(5)) + (116.293*(x(3)^2)) + (0.0942187*x(3)*x(4)) - (0.00809375*x(3)*x(5)) + (0.00119558*(x(4)^2)) + (0.000363281*x(4)*x(5)) - 0.00150518*(x(5)^2);
> f(2) =-[-0.985466 + (0.151912*x(1)) - (0.00642768*x(2)) + (3.08858*x(3)) - (0.000251344*x(4)) - (0.00216784*x(5)) - (0.0344143*(x(1)^2)) + (0.00035*x(1)*x(2)) + (0.02125*x(1)*x(3)) + (0.00114688*x(1)*x(4)) + (0.0000375*x(1)*x(5)) +(0.0000464643*(x(2)^2)) + (0.0020625*x(2)*x(3)) - (0.00000921875*x(2)*x(4)) + (0.00001125*x(2)*x(5))- (3.44143*(x(3)^2)) + (0.002375*x(3)*x(4)) - (0.0020625*x(3)*x(5)) - (0.0000121339*(x(4)^2)) + (0.00000859375*x(4)*x(5)) + (0.0000152143*(x(5))^2)];
>
> Lower Bounds [3,30,0.4,-200,20]
> Upper bounds [5,70,0.6,-120,60]
>
> When i run the code, i get the following error
> In an assignment A(I) = B, the number of elements in B and
> I must be the same.
>
> But when i tried to remove a few terms from my function and shorten it, i was getting the pareto front without any problems. Clearly, this is not a solution to my problem. Any help or suggestions would be apprecated.
>
> when i run this code, i get the error message


thanks a ton steve lord, running perfectly ok now..
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