Answered
Optimize model parameters given minimum sum of error square
It does not make sense that there are randomization operations like normrnd in your objective function. How can a function be "m...

9 days ago | 0

Question


Save and load alternative sets of preferences
I know how to set Preferences in Matlab through GUI buttons, however, suppose I have different sets of preferences that I wou...

10 days ago | 1 answer | 0

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Answered
fsolve with one variabel
I don't understand why you would be using Symbolic Math Toolbox variables, syms x unless you were planning to use solve, Tinc...

12 days ago | 1

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Answered
curve fitting with dependencies between the coefficients
Re-express your model function as, sin(d1)^2*(1-exp(-a1*(t^n1))) + cos(d1)^2*sin(d2)^2*(1-exp(-a2*(t^n2))) +... ...

12 days ago | 0

Answered
What happens if I use parfor and the fmincon/fminunc option "UseParallel" together?
I don't know the answer to that directly, but it is easy to show by example that turning off 'UseParallel' can be beneficial: o...

12 days ago | 0

Answered
fmincon Constraint Query Optimization
Generally, all constraints must operate on the total set of unknows x1,..x10. However, given A1,A2, b1,b2 it is simple enough to...

12 days ago | 0

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Answered
show det(A) = det(A') ?
But it's not true! A=rand(200); isequal(det(A),det(A.'))

12 days ago | 0

Answered
Optimization problem on Constraint declaration
We can't tell from your code what the relation is supposed to be between a, wd and x. This might be what you were trying to do, ...

12 days ago | 0

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Answered
How to use for loop to set properties' attributes in MATLAB class?
You cannot put a for loop or other complex code inside a properties block. If you wish, you can set a default value for a proper...

12 days ago | 1

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Answered
Using the given code, how can I optimize a matrix to minimize a cost function?
Well, the way you would approach it is using fmincon as below. Using your initial guess of zeros(N,M), fmincon is unable to find...

12 days ago | 0

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Answered
How to input dependent parameters in matlab function?
These two, out = myfun(A,B,optionC,dependent_C1) out = myfun(A,B,optionC,dependent_C2) are not possible simultaneously. If ...

13 days ago | 0

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Answered
fmincon - Converged to an infeasible point.
The max() operations in your constraints disqualify fmincon as a valid tool for this problem - the constraint functions are assu...

14 days ago | 0

Answered
Transform set of points into 2xN matrix
set1.'

14 days ago | 0

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checking input an integer greater than 0?
validateattributes(yourInput,"numeric",{"integer","nonnegative"})

14 days ago | 0

Answered
Why do the ylabel renderings look different when Property Inspector says they are the same?
I figured it out. The syntax for the second plot needed to be, ylabel('Local Deviation (\%)','Interpreter','latex') ; %percent ...

14 days ago | 0

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Question


Why do the ylabel renderings look different when Property Inspector says they are the same?
The image below is a screenshot of two different y-axis labels that I have in two different figure windows, generated in R2020a....

15 days ago | 2 answers | 0

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answers

Question


How to load a .mat file from a URL
I find that I cannot load a .mat file from a URL. For example, when I try to call load() with the full URL of the attached .mat ...

15 days ago | 1 answer | 1

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answer

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Problems about "rotate" function
Presumably because b(end) is the perimeter, i.e., it is a polyshape containing almost no internal area.

16 days ago | 0

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Answered
Why am I getting 'NaN' values in my vector?
I don't understand the instructions, but maybe this is what it means: x(i+18+1) = mod( x(i+7+1) + x(i+1), 2); y(i+18+...

16 days ago | 0

Answered
fmincon nonlinear inequality constraints
function [c, ceq] = nlcon(p) c = p(4)-exp(p(1)-p(2).*p(3).^log(1./2.7)) -35 ; ceq =[ ]; end

16 days ago | 0

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Answered
Matrix Operations Horizontal and Vertical Shifts
The spy() function does not care if its input is square, but it doesn't have any relevance to shifting images. I don't know why ...

16 days ago | 0

Answered
multiplying matrix by another matrix element and using it in a command
clear e for i=numel(T):-1:1 e(:,:,i)=expm(Q*T(i)); end

16 days ago | 2

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Answered
Distance Matrix Without Loop
x = [3, 5, 10]; y = [3, 5, 10]; A = abs(x(:)-y(:).')

16 days ago | 0

Answered
Hello every one, I have a question related to approximation of functions based on norms
You would not use fmincon. For L1, you could use minl1lin https://www.mathworks.com/matlabcentral/fileexchange/52795-constraine...

17 days ago | 1

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Answered
Expand a coordinate array to be wider
I'm assuming A and B are the struct output from regionprops: Z=false(size(BW)); Aunion=Z; for i=1:numel(A) Aunion(A(...

17 days ago | 0

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Multiplying each value of a vector with the corresponding value in another vector?
theta = (E.*A.*alpha.*temp.*[-1 ,1]).'

17 days ago | 0

Answered
Multiplication of matrix including function with vectors
G(s) = C.' * v * B

17 days ago | 1

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Answered
Decimal matrix to binary matrix correspond to each value of decimal matrix.
I just want to be sure you are aware, Matlab is capable of doing bitwise operations on matrices (using bitor, bitand, etc... ) e...

18 days ago | 0

Answered
How to minimize the L1 norm of residuals?
FMINSEARCH would be a good candidate, since you have only two unknowns fun=@(param) norm( f - y(end)./(1 + 10.^((param(1) - x)*...

18 days ago | 0

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