![]() ![]() If it helps, the typical values that I'm dealing with are usually around -45 dB. Usually it outputs something right around N(65,8), almost like it isn't really trying many other values far from the starting points.Īny ideas on what I can do to make this work? I know I can set the TolX and TolFun settings, but I'm not really sure what those do and what effect they'd have. A nonlinear constraint function has the syntax c,ceq nonlinconstr (x) The function c (x) represents the constraint c (x) < 0. Include nonlinear constraints by writing a function that computes both equality and inequality constraint values. Yet it doesn't seem to be properly finding the mean and standard deviation angles which minimize the function. This example shows how to solve an optimization problem containing nonlinear constraints. I'm also setting the mean angle bounds to be from 0 to 90 degrees and the standard deviation bounds to be from 0 to 20 degrees. Thus, I'm using a starting orientation with a mean of 65 degrees and a standard deviation of 8. To do this, I try using fmincon: x =, ,, ,, ,, , options) So what this function does is calculates the sum of squared residuals, which I want to minimize. This video is part of an introductory series on optimization. ![]() TS_krm = KRM(normrnd(x(1),x(2),100,1), L) This video shows how to perform a simple constrained optimization problem with fmincon in Matlab. To do this, I'm trying to use the Matlab function fmincon to minimize the following function: function f = myfun(x) What I'm trying to do is figure out which normal distribution of angles results in the model data matching up most closely with the in situ data. Step 1.Main code x0 1 fminunc(objfun,x0) Step 2.Function function y objfun(x) y 0.5log(x) - 0. ![]() I also have some in situ measurements of acoustic strength. I have a function which calculates the acoustic strength of a fish depending on the incident angle of the wavefront on the fish. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |