Answered
Validating multi-start fmincon optimization
My main Q is that: does make sense to confirm the solutions form fmincon solver with global optimization like surrogateopt? It ...

11 months ago | 0

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I am getting the error as " Not enough input arguments " and " Failure in initial objective function evaluation. FSOLVE cannot continue". Please suggest me possible solutions.
It is not clear from your code which variables are meant to be the 2 unknowns, and which are constants. In any case, your fun ne...

11 months ago | 0

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Help with getting data from image at equidistant positions from the centre - to include the "off circle corners"
[M,N]=size(yourImage); c=[M+1,N+1]/2; %image center rho=hypot((1:M)'-c(1), (1:N)-c(2)); G=discretize(rho,0:2:norm...

11 months ago | 0

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Answered
differentiable approximation of bandwidth in ksdensity for optimization
ChatGPT offers the following:

11 months ago | 0

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Answered
Variables Unrecognized in parfor but Work in for Loop
I am aware of this, but I was hoping to avoid writing 'params.' to reduce clutter in my code. You might consider this File Exch...

11 months ago | 1

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Variables Unrecognized in parfor but Work in for Loop
You should not be using eval to create new variables, regardless of whether the loop is parfor or a regular for loop, see also, ...

11 months ago | 1

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Answered
Can binarization be applied to a masked area only?
or if there is a way to discard evertyhing else outside the mask? Yes: Image=Image.*mask *Do I have to make a mask for each c...

12 months ago | 1

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Answered
Efficient access and manipulation of arrays in nested cells
There is no way to iterate over cells (nested or otherwise) without a loop, or something equivent in performance to a loop (cell...

12 months ago | 0

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Error using trainNetwork (line 191) Invalid training data. The output size ([1 1 2]) of the last layer does not match the response size ([512 512 2]).
It doesn't make sense that you have a "mask" unless you are doing semantic segmentation (i.e. pixel-by-pixel classsifcation), an...

12 months ago | 1

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Optimization stopped because the relative changes in all elements of x are less than options.StepTolerance = 1.000000e-06, but the relative maximum constraint violation, 9.999
Your ConstraintTolerance setting is extraordinarily large. Did you mean to have, ...'ConstraintTolerance', 1e-7)

12 months ago | 0

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Nested fmincon call to solve min max optimization
To solve without nested optimization, reformulate as, which can be solved using ...

12 months ago | 0

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How can i use symbolic variables in a parallel Computing (parfor)?
Dlu_11_1= zeros([M,N,N,M], 'sym') ; parfor t=1:(M*N)^2 [ki,kj,j,i]=ind2sub([M,N,N,M],t); Dlu_11_1(t)=d...

12 months ago | 1

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Question

Are dlnetworks supposed to be allowed to have output layers?
Are dlnetworks allowed to have output layers? In the following code, I manage to create one, so the answer would seem to be yes....

12 months ago | 1 answer | 0

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Answered
How to install Graph Neural Networks Toolbox on MATLAB2024b
There is no such toolbox natively supplied by the MathWorks. If you're talking about a 3rd party toolbox, you should ask its aut...

12 months ago | 0

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Fit Ellipse to structure in image
I recommend downloading this, https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-tools-to-fit-plot-coni...

12 months ago | 0

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I want quick access toolbar strip (Data strip, ZoomIn, ZoomOut, etc.. buttons) on my 2019b MATLAB figure/plot window.
addToolbarExplorationButtons(fig)

12 months ago | 0

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Find orientation of a blade-shaped object
I would like to measure its orientation with an accuracy close to 0.1°. The accuracy will be influenced by the quality of your ...

12 months ago | 0

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Answered
vpasolve finds no solutions except the null solution
With numerical algorithms like vpasolve, you never can tell what it will find, if anything. In any case, lsqnonlin seems to offe...

12 months ago | 0

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Answered
How to fill a blank cell with the value of the cell above it in a table?
The only line of code you need is this one data.Var1=fillmissing(data.Var1,'previous') Get rid of the lines around it. Var1={...

12 months ago | 0

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Answered
How to put a legend outside of a tiled layout graph?
TL=tiledlayout(4,1); %Outer Layout tl=tiledlayout(TL,3,1); %Inner Layout -- child of TL tl.Layout.Tile=1; tl.Lay...

12 months ago | 0

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Answered
polyshape fractures after multiple merges
Perhaps I don't fully understand the logic of your loop completely, but I definitely think subtract() is more appropriate here t...

12 months ago | 0

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Answered
When using assignin in subfunction A to create a variable in the workspace of subfunction B, the variable is being overwritten by a MATLAB built-in function with the same name
The real solution is this, function output = test_beta(input) output = test_beta2(input); end function beta=test_beta2...

12 months ago | 2

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Answered
Non-linear scaling for linear increase in complexity
It is because you are applying property validations {mustBeFloat, mustBeNonnegative} on the x property. This means that in every...

12 months ago | 0

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Question

Numeric vector indexing slows down when the vector is a struct field. Why?
In the speed comparision below, the only difference between Version 1 and Version 2 is that the vector being updated is the fiel...

12 months ago | 1 answer | 0

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Answered
how to read in a curved region of interest that is one plane?
I don't quite understand what you are trying to do, but I have the vague impression you are trying to interpolate an image on a ...

12 months ago | 0

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What coordinate system does regionprops assume for orientation angle?
You can still view the Orientation properties coordinate system as x-right, y-down, z-into-screen. However, the direction of pos...

12 months ago | 0

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Answered
Which dimension(s) does trainingOptions shuffle apply to?
You can use analyzeNetwork to see which dimension is the batch dimension.However, I believe it will always be the last dimension...

12 months ago | 0

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Answered
finding partial solutions from ill-conditioned equations
If you know which x(i) are well-determined, you could use lsqminnorm. In this example, we know that only x(1:2) are well-determi...

12 months ago | 0

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Answered
Optimization method based on the Nonlinear least squares as well as fmincon for the defined objective function (Non-linear function).
The goal is to use some inverse method to get the same 3D datasets; therefore, after defining the objective function, I applied ...

12 months ago | 0

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Answered
I am encountering a persistent error with the predict function in the Deep Learning Toolbox within MATLAB 2024b.
You need, testDlarray = dlarray(randn(inputSize,1), 'CB'); or, testDlarray = dlarray(randn(1, inputSize), 'BC');

12 months ago | 0

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