已回答
find best fit ellipse to a set of data points
Use ellipticalFit() from, https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-tools-to-fit-plot-conics-a...

19 days 前 | 2

| 已接受

已回答
FFT of 3D array in MATLAB
Why reinvent the wheel. Why not just use the open source FFTW C/C++ library (which Matlab is based on). https://www.fftw.org/ ...

19 days 前 | 0

| 已接受

已回答
is it possible to see what variables and functions affecting a certain variable ?
Perhaps you are looking for matlab.codetools.requiredfilesandproducts.

19 days 前 | 0

已回答
How to convert this fplot to 3D plot view
view(3)

19 days 前 | 0

| 已接受

已回答
trainnet gives training loss is NaN
You need to provide more information about what you did, e.g., the training code. However, I can hazard a guess. I imagine prob...

19 days 前 | 0

已回答
How to train Unet semantic segmentation with only one single class/label?
The value of 'numClasses' is invalid. Expected numClasses to be a scalar with value > 1 Because you have two classes (0 and 1)....

19 days 前 | 0

已回答
Image processing - Is there any technics to remove this marks ?
A=im2gray(imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1746876/image.jpeg')); B=255+double(imcomple...

20 days 前 | 0

已回答
How to use OutputFcn with fitnlm
Only Optimization Toolbox solvers have an OutputFcn option. Perhaps you are thinking of lsqcurvefit, load carbig tbl =...

21 days 前 | 0

已回答
3D system definition: How btaining the angle between a single axis and a plane
and eventually XY That would just be the angle between Yprime and Z, wouldn't it? Yprime=Rprime(:,2); Z=R(:,3); angle = ac...

24 days 前 | 0

| 已接受

已回答
Mean and Standard Deviation of outputs on a neural network
You have shown the code for your network, but not how you have adapted the training code, nor the error messages. So, it calls f...

25 days 前 | 0

已回答
Dual problem and primal problem unbounded linear programming
%Primary Problem %coefficients of A A = [1 4; 4 5; 2 3; 3 1]; %coefficients of B b = [320 510 430 300]; %coefficients...

29 days 前 | 0

已回答
how can i rescale image? standard is at the center part
Use imresize. It scales relative to the center.

1 month 前 | 0

已回答
How can I identify and fill outliers in a 2d matrix?
You could detect and replace the outliers with missing values by doing, outlierMap = abs(yourMatrix-medfilt2(yourMatrix,[M,N]))...

1 month 前 | 1

| 已接受

已回答
How can I calibrate a fixed camera to obtain accurate measurements of objects at different distances, despite height variations and pixel distortion?
You cannot determine the size of the object from a single camera without knowing its distance from the camera. You would need tw...

1 month 前 | 0

| 已接受

已回答
Setting bounds for constants in a fit() object in terms of other constants in the fit object
As a more indirect approach, instead of fitting, y=A*log(B*x-C) %D has been deliberately removed - it is unnecessary you coul...

1 month 前 | 0

| 已接受

已回答
1D gaussian filter for A-scans (OCT)
See imgaussfilt, e.g., A=zeros(1,11); A((end+1)/2)=1 B=imgaussfilt(A,1.2)

1 month 前 | 0

已回答
Finding zeros of intersection of the "x-axis" - Error using "fzero"
tic close all; clc; % For the region k_o < k_p < sqrt(u_r*e_r)*k_o % Wavelength value lambda lambda = 1; % Wavenumber...

1 month 前 | 0

| 已接受

已回答
Why are the gradients not backpropagating into the encoder in this custom loop?
In terms of what may be different from trainnet, I don't see any regularization in your customized loop. You have a function cal...

1 month 前 | 0

| 已接受

已回答
How to define a slicing like x(i).property in a custom class?
function varargout = subsref(this, s) switch s(1).type case '()' ...

1 month 前 | 0

| 已接受

已回答
GPU memory usage for Hadamard product
This is just a guess, but possibly the GPU memory is fragmented. I.e., maybe your available 28GB is broken into blocks that are ...

1 month 前 | 0

已回答
Loop data in both x and y direction, and do linear fit of each y at each x
t = 15:15:1440; %time MSD=readmatrix('MSDdata.xlsx'); A=t.'.^[1,0]; slopes=nan(size(MSD)); for i=1:height(A) tm...

1 month 前 | 0

| 已接受

已回答
Loop data in both x and y direction, and do linear fit of each y at each x
Perhaps this is what you want. matrix1=rand(96,1); matrix2=rand(96,150); [Xslope,Tslope]=gradient(matrix2,1:150,matrix1); ...

1 month 前 | 0

已回答
"tighter" tile spacing and uniform tile height using tiledlayout?
You could also play with the tilespan: % Create tiled layout tiledlayout(1,305,'TileSpacing','none','Padding','none'); % I...

1 month 前 | 1

已回答
"tighter" tile spacing and uniform tile height using tiledlayout?
One option would be to download subaxis, as an alternative to tiledlayout. s=.01; % Image A subaxis(1,3,1,'SpacingHoriz',s)...

1 month 前 | 1

已回答
How can I use the data of a set of matrices labelled in order
data_1=10; data_2=20; data_3=30; data_4=40; data_5=50; Data=arrayfun(@(i)evalin('caller', "data_"+i), 1:5,'uni',0)

2 months 前 | 0

已回答
Where can I find a good example of using tied weights in nested layers?
The example at your link is for R2024a, but the version of Matlab you are running is only R2023b.

2 months 前 | 0

| 已接受

已回答
Formatting Data in dlarray for Deep Learning Models
You cannot do that, but you shouldn't need to. Because the dimensions are all identified by labels (in this case CBT), trainnet(...

2 months 前 | 0

已回答
Assigning many cell array entries to same value using index
You should probably be using strings or catgorical arrays instead of cells. Regardless, it is easy to switch back and forth: ce...

2 months 前 | 1

已回答
Assigning many cell array entries to same value using index
Another way, [cellArray{iHigh}] = deal('High'); [cellArray{iLow}] = deal('Low');

2 months 前 | 1

已回答
Single struct as alternative to name-value pairs in user-defined function
You would have to use the older inputParser system to do that kind of thing, with the StructExpand property set to true (the def...

2 months 前 | 1

| 已接受