gamultiobj optimization with nonlinear constraints bigger than

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dralp
dralp 2018-3-19
编辑： dralp 2018-3-19
I know nonlinear inequality constraints have the form c(x) ≤ 0. Which means they optimize samller (or equal) values.
I'm optimizing a multi-objective function, where some constraints are required to be bigger (or between) than certain values, rather than smaller.
Is there a way to do it?

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Walter Roberson
Walter Roberson 2018-3-19
function [c, ceq] = nonlcon(x)
c = [x(1), x(2), -x(3), -x(4)];
ceq = [];
The above code implements x(1) <= 0, x(2) <= 0, x(3) >= 0, x(4) >= 0
To implement P <= x(1) <= Q you would use
[P - x(1), x(1) - Q]

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