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Matt J


Last seen: 1 jour il y a Actif depuis 2010

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Professional Interests: medical image processing, optimization algorithms PLEASE NOTE: I do not read email sent through my author page. Please post questions about FEX submissions in their respective Comments section.

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Réponse apportée
How to calculate the average value of a vector in MATLAB?
mean([10,20,30,40,50])

1 jour il y a | 0

Réponse apportée
How deep network designer with neural network fitting
See here for an intro to Deep Network Designer, https://www.mathworks.com/help/deeplearning/gs/get-started-with-deep-network-de...

6 jours il y a | 0

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How to move selected variables to one side of a symbolic equation
syms c1 c2 c3 c4 c5 c6 c7 syms A B C M N O F eq = c1*A + c2*B + c3*C + c4*M + c5*N + c6*O + c7 == F; vars=[A,B,C].'; %...

8 jours il y a | 0

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Réponse apportée
How to move selected variables to one side of a symbolic equation
syms c1 c2 c3 c4 c5 c6 c7 syms A B C M N O F eq = c1*A + c2*B + c3*C + c4*M + c5*N + c6*O + c7 == F; vars=[A,B,C]; %se...

8 jours il y a | 0

Réponse apportée
Orientation of Shell grid
Apply a 3x3 rotation matrix R to the tetrahderon which transforms the (0,0,0) to (1,1,1) edge so that it aligns with the z-axis...

8 jours il y a | 0

Réponse apportée
Orientation of Shell grid
Obtain vertices for the complete, non-truncated cylinder Vcyl and the vertices Vtet for the tetrahedron containing it. Then, you...

8 jours il y a | 0

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How to do a polynomial fit to a dataset with an excluded term
Use mldivide, \ to solve the appropriate linear equations for the coefficients, coefficients=x(:).^[0,1,2,4] \ y(:);

9 jours il y a | 1

Réponse apportée
Count number of true statements in a sequence until false, then check for the next true and repeat
Download this, https://www.mathworks.com/matlabcentral/fileexchange/78008-tools-for-processing-consecutive-repetitions-in-vecto...

16 jours il y a | 0

Réponse apportée
Graphics argument validation for function in parfor loop
Second, is there any way to retain automatic argument validation for an axis object that plays nicely with parfor, in cases wher...

19 jours il y a | 1

Réponse apportée
Non-linear data fit with multiple constants
Though your post's title says the fitting problem is nonlinear, it is actually linear when b and d are known, and so has a simpl...

24 jours il y a | 1

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Memoize an anonymous function with externally scoped variables
One solution is to rebuild the anonymous function inside the memoized function using a container class: mf=memoize(@subfunc); ...

25 jours il y a | 0

Question


Memoize an anonymous function with externally scoped variables
I am trying to memoize a function that takes an anonymous handle with an externally-scoped parameter as input. The problem is th...

25 jours il y a | 3 réponses | 0

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Réponse apportée
Is there a way to insert a common ylabel to secondary axes in a tiled layout?
t = tiledlayout(2,2); for i = 1:4 f = figure(1); ax = nexttile; yyaxis left x = (1:10); y = rand(1,10)...

environ un mois il y a | 0

Réponse apportée
How does Matlab interact with custom Diffusion models?
From what I've read, simple diffusion U-Nets are well within Matlab's reach. For very advanced models like LDF-VFI, Matlab can d...

environ un mois il y a | 0

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transfer learn without losing old memoy YoloX
Continual learning is a serious research topic.There are no off-the-shelf tools in Matlab to do it in a sophisticated way. You w...

environ un mois il y a | 0

| A accepté

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How to flatten an image and find dimensions?
Find the 4 vertices of the outer ellipse (i.e., the end points of the major and minor axes). This can be done manually with draw...

environ un mois il y a | 0

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help with XYZ data file
This might be what you're looking for: zq=fspecial('gaussian',200,40); Nlevels=5; zRanges=linspace(min(zq(:)) ,max(zq(:))...

environ un mois il y a | 0

Réponse apportée
help with XYZ data file
First question, I would like to be able to plot some of the planes of XY with fixed Z values/range. The terminology "planes of...

environ un mois il y a | 0

A soumis


Quadratic minimization with norm constraint
Minimizes convex or non-convex quadratics subject to (in)equality constraint on norm(x)

environ un mois il y a | 3 téléchargements |

4.5 / 5

Réponse apportée
How to find a rotation vector for use in rotate, if the rotation matrix is rank deficient?
Probably easier to use hgtransform, which allows you to perform the rotation by specifying only the rotation matrix.

environ un mois il y a | 0

Réponse apportée
Find specified number of points on curve with identical chord length (not arc length)
Here's an approach using fminbnd to minimize the attached cost function circleMarch(). t=linspace(0,200,1e4)'; %%% XY=[cosd...

environ un mois il y a | 0

| A accepté

Réponse apportée
How to use custom YOLO models in MATLAB?
If you have the Deep Learning Toolbox, you can use minibatchpredict.

environ un mois il y a | 1

Réponse apportée
How to remove unwanted double image in plot
It is possible your points are not sorted in ascending order of x.

environ un mois il y a | 0

| A accepté

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How can you make multi-line axis labels with TeX not left-justified in R2026a?
Here's an attempt using the idea of separate text boxes that you mentioned. It wasn't too bad, although, it doesn't have the abi...

environ un mois il y a | 0

Réponse apportée
How can you make multi-line axis labels with TeX not left-justified in R2026a?
xlabel({'normal'; '\textbf{bold}'}, ... 'Interpreter','latex')

environ un mois il y a | 0

Réponse apportée
How to find a function in the path - securely?
Perhaps as follows? safeWhich('num2cell') safeWhich('varargin') safeWhich('R') safeWhich('p') safeWhich('queryName') ...

environ 2 mois il y a | 1

| A accepté

Réponse apportée
Colorbar with background image
You can use this as a template: % Create sample data [X,Y] = meshgrid(linspace(-3,3,200)); A = exp(-(X.^2 + Y.^2)); ...

environ 2 mois il y a | 0

Réponse apportée
Only version 2026a appears available for download as a trial. I want version 2025b
If you Contact Sales, you might be able to arrange a trial version of your choice with them directly.

environ 2 mois il y a | 0

Réponse apportée
How to use fft on the continuous time signal
Here is the proper way to set up the time and frequency sampling axes: tau = 1*10^-9; % tau %Set up frequency and time sampl...

environ 2 mois il y a | 0

| A accepté

Réponse apportée
textscatter example, and behavior, is mysterious
Here's an alternative, whose behavior you might like better: rng("default") n = 11; x = rand(n,1); y = rand(n,1); str = str...

environ 2 mois il y a | 0

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