Respondida
Take 3x3 nearest neighbours round centroids of all spots and find the median of their mean
movingMean=conv2(IM,ones(3)/9,'same'); centroidIdx=sub2ind(size(IM),y1,x1); result=median(movingMean(centroidIdx))
Take 3x3 nearest neighbours round centroids of all spots and find the median of their mean
movingMean=conv2(IM,ones(3)/9,'same'); centroidIdx=sub2ind(size(IM),y1,x1); result=median(movingMean(centroidIdx))
más de 1 año hace | 0
Pregunta
Displaying a struct containing gpuArray fields takes an extremely long time in R2024b
I find that when I create a struct (or object) whose fields are large gpuArrays, it takes an extremely long time (1-2 minutes) t...
más de 1 año hace | 2 respuestas | 0
2
respuestasEnviada
gaussfitn
Fit N-dimensional scattered points with Gaussian+constant
más de 1 año hace | 2 descargas |
Respondida
MINLP problem in MATLAB with both integer constraints and nonlinear equality constraints
If, as @Torsten mentioned, you are in the situation where the equality constraints only depend on the continuous variables, then...
MINLP problem in MATLAB with both integer constraints and nonlinear equality constraints
If, as @Torsten mentioned, you are in the situation where the equality constraints only depend on the continuous variables, then...
más de 1 año hace | 0
Respondida
how to use fmincon to optimize a functio with more than one control vector where the control vectors used in constrains also?
Use the problem-based optimization framework to launch fmincon. It will look approximately like, p=optimvar('p',pi,pj); X=opti...
how to use fmincon to optimize a functio with more than one control vector where the control vectors used in constrains also?
Use the problem-based optimization framework to launch fmincon. It will look approximately like, p=optimvar('p',pi,pj); X=opti...
más de 1 año hace | 0
| aceptada
Respondida
Fit a linear equation to obtain coefficients (constants)
I have a linear equation P = a + bM + c(Y-1) + d(M(Y-1)) where a, b, c and d are coefficients (constants). P, Y and M are known...
Fit a linear equation to obtain coefficients (constants)
I have a linear equation P = a + bM + c(Y-1) + d(M(Y-1)) where a, b, c and d are coefficients (constants). P, Y and M are known...
más de 1 año hace | 1
Respondida
MINLP problem in MATLAB with both integer constraints and nonlinear equality constraints
Such problems usually do not have solutions (EDIT: unless the equalities depend only on the continuous variables), since a nonli...
MINLP problem in MATLAB with both integer constraints and nonlinear equality constraints
Such problems usually do not have solutions (EDIT: unless the equalities depend only on the continuous variables), since a nonli...
más de 1 año hace | 1
| aceptada
Respondida
parallel computing apply to my problem
Skipping the symbolic operations will speed things up, tic; t=linspace(0,0.1,1000)'; tsquared=t.^2; [a...
parallel computing apply to my problem
Skipping the symbolic operations will speed things up, tic; t=linspace(0,0.1,1000)'; tsquared=t.^2; [a...
más de 1 año hace | 0
Respondida
Class Property Validation for the Contents of a Cell Array Property?
You can do it, but you would have to define your own validation function, https://www.mathworks.com/help/matlab/matlab_oop/prop...
Class Property Validation for the Contents of a Cell Array Property?
You can do it, but you would have to define your own validation function, https://www.mathworks.com/help/matlab/matlab_oop/prop...
más de 1 año hace | 2
| aceptada
Pregunta
Loading user-defined classes from .mat files absent the classdef
At one time, if I had a .mat file with a user-defined class variable, but lacked the classdef file, loading the .mat file would ...
más de 1 año hace | 1 respuesta | 0
1
respuestaPregunta
Why does .mat file previewer take so long?
I often wish to preview the contents of a .mat file in the Current Folder browser. Some of my .mat files are quite large, which ...
más de 1 año hace | 1 respuesta | 0
1
respuestaPregunta
How do I import my MATLAB path preferences when I install MATLAB on new computers?
I have a new computer with Matlab 2024b newly installed on it and am looking to import preference settings (mainly desktop layou...
más de 1 año hace | 1 respuesta | 0
1
respuestaPregunta
Command Window prompt stays in view during Run Section
I find, in R2024b (I haven't checked other versions), then when running sub-sections of code, for example with , the command li...
más de 1 año hace | 1 respuesta | 0
1
respuestaRespondida
how to fft2 with dlarray?
You haven't explained the difficulty you are experiencing, but I assume it is that an fft(), but not an fft2() command is availa...
how to fft2 with dlarray?
You haven't explained the difficulty you are experiencing, but I assume it is that an fft(), but not an fft2() command is availa...
más de 1 año hace | 0
| aceptada
Respondida
Iteratively selecting rotation angle for alingment
Use imregtform if you are aligning images. If you are aligning points, use this, https://www.mathworks.com/matlabcentral/fileex...
Iteratively selecting rotation angle for alingment
Use imregtform if you are aligning images. If you are aligning points, use this, https://www.mathworks.com/matlabcentral/fileex...
más de 1 año hace | 0
Respondida
Ensuring Non-Negativity and Constraints Satisfaction in Regression with ReLU in MATLAB
You cannot request that trainNetwork strictly enforce constraining (in)equalities using a constrained optimization algorithm, if...
Ensuring Non-Negativity and Constraints Satisfaction in Regression with ReLU in MATLAB
You cannot request that trainNetwork strictly enforce constraining (in)equalities using a constrained optimization algorithm, if...
más de 1 año hace | 0
Respondida
How to stabilize the edge effects in a cubic B-spline?
This FEX file allows you to specify extrapolation conditions on the B-spline coefficients, https://www.mathworks.com/matlabcent...
How to stabilize the edge effects in a cubic B-spline?
This FEX file allows you to specify extrapolation conditions on the B-spline coefficients, https://www.mathworks.com/matlabcent...
más de 1 año hace | 1
Respondida
How come fsolve is exceeding evaluation limit?
I don't quite understand the physics of your problem, but I have the impression that x(3:5) are meant to be non-negative. Hence,...
How come fsolve is exceeding evaluation limit?
I don't quite understand the physics of your problem, but I have the impression that x(3:5) are meant to be non-negative. Hence,...
más de 1 año hace | 0
Respondida
ellipse fit of xy data
I think the arc is too short to get a good elliptical fit. Why not a circular fit? Qualitatively at least, it looks pretty good:...
ellipse fit of xy data
I think the arc is too short to get a good elliptical fit. Why not a circular fit? Qualitatively at least, it looks pretty good:...
más de 1 año hace | 0
Respondida
Why does this special case for associativity of a matrix product with a hadamard product hold true?
It is clear why this happens when n=1, i.e, when A*B is an outer product. But now for arbitrary n, the matrix product can be wri...
Why does this special case for associativity of a matrix product with a hadamard product hold true?
It is clear why this happens when n=1, i.e, when A*B is an outer product. But now for arbitrary n, the matrix product can be wri...
más de 1 año hace | 1
| aceptada
Respondida
Private/protected properties not suggested by methods in class folder
If this is a bug or oversight, I hope it's resolved soon (or perhaps already is in a release later than 2023b) I actually think...
Private/protected properties not suggested by methods in class folder
If this is a bug or oversight, I hope it's resolved soon (or perhaps already is in a release later than 2023b) I actually think...
más de 1 año hace | 0
Respondida
how to crop a binary mask to remove all black pixels while maintaining the largest area of white pixels?
result = regionprops(bwareafilt(mask,1), 'Image').Image;
how to crop a binary mask to remove all black pixels while maintaining the largest area of white pixels?
result = regionprops(bwareafilt(mask,1), 'Image').Image;
más de 1 año hace | 0
Respondida
I would like to introduce a new loss function.
If the context is deep learning, then you should be using trainnet, whcih allows you to specify the loss function without any ot...
I would like to introduce a new loss function.
If the context is deep learning, then you should be using trainnet, whcih allows you to specify the loss function without any ot...
más de 1 año hace | 0
Respondida
How to load multiple mat file in sequence without natsortfiles?
F=sort("file"+(1:14)+".mat"); F=F(randperm(end)) %Unordered file list [~,is]= sort( str2double(extract(F,digitsPattern)) ...
How to load multiple mat file in sequence without natsortfiles?
F=sort("file"+(1:14)+".mat"); F=F(randperm(end)) %Unordered file list [~,is]= sort( str2double(extract(F,digitsPattern)) ...
más de 1 año hace | 0
Respondida
Can I get output data from CNN convolution layer without training?
When not training, it is better to use predict(), rather than forward(). layers = [ imageInputLayer([512 512 3],Normalization=...
Can I get output data from CNN convolution layer without training?
When not training, it is better to use predict(), rather than forward(). layers = [ imageInputLayer([512 512 3],Normalization=...
más de 1 año hace | 0
Respondida
How does MATLAB resolve a function handle with multiple levels of indexing
Well, ultimately I think Approach 3 is the only 'correct' one. It appears that when the indexing is one level deep (as in Approa...
How does MATLAB resolve a function handle with multiple levels of indexing
Well, ultimately I think Approach 3 is the only 'correct' one. It appears that when the indexing is one level deep (as in Approa...
más de 1 año hace | 1
| aceptada
Respondida
Help fixing different sized plots with tiled layout
Since you use imagesc to generate the subfigures, it seems to me that you should be using axis image. tiledlayout(3,3,"TileSpac...
Help fixing different sized plots with tiled layout
Since you use imagesc to generate the subfigures, it seems to me that you should be using axis image. tiledlayout(3,3,"TileSpac...
más de 1 año hace | 1
| aceptada
Respondida
Solving non linear system with fsolve
R is too small compared to C to have any effect numerically, so the equation is basically C*T=f. I'm assuming also that you mean...
Solving non linear system with fsolve
R is too small compared to C to have any effect numerically, so the equation is basically C*T=f. I'm assuming also that you mean...
más de 1 año hace | 0
Respondida
How to permute the rows and columns in a sparse GPU matrix?
The permAndRebuild() function below is a reimplementaiton of the row permutation operation M(p,:) that also works on the GPU. On...
How to permute the rows and columns in a sparse GPU matrix?
The permAndRebuild() function below is a reimplementaiton of the row permutation operation M(p,:) that also works on the GPU. On...
más de 1 año hace | 1
| aceptada
Respondida
How to get correct pixel size in 2D after cut 3D voxel using obliqueslice
IMHO obliqueslice is a bit of a crude tool for slice sampling. One of the many things you can do with this FEX package, https:/...
How to get correct pixel size in 2D after cut 3D voxel using obliqueslice
IMHO obliqueslice is a bit of a crude tool for slice sampling. One of the many things you can do with this FEX package, https:/...
más de 1 año hace | 0