Matt J
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Feeds
Error using the fmincon function
No, the constraint and objective functions have to return real values to be considered "defined". Possibly you have log() or sq...
alrededor de 19 horas hace | 0
Aquiring images from mobile camera is too slow
Yes, you can postpone the image display until after the acquisition. N=1000; [img,t]=deal(cell(1,N)); for i=1:N [img{i},...
alrededor de 20 horas hace | 0
Plotting, how can I stop fill hiding the tickmarks?
X = 0:20; Y = sin(X/10); plot(X, Y, 'ko'); hold on; % Draw white patch (e.g., to "highlight" a region) Xfill = [10 20 20...
alrededor de 23 horas hace | 0
Spatial filtering of cylindrical data
Using padarray you can pad circularly in theta and symmetrically in z and then filter with 'valid' shape flags. If you are filte...
alrededor de 23 horas hace | 0
find sequence in a matrix
I=[0 1 0 1 1 1 0 0 0 1 1 1 0 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 0 0 1;1 1 0 1 0 1 0 0 0 1 0 1 0 0 1 1 1 0]; k=3; Ik=str...
1 día hace | 0
Pregunta
Launch a desktop layout programmatically
In the Environment seciton of the desktop's Home Tab, there is an area for saving and loading one's preferred desktop layouts: ...
1 día hace | 1 respuesta | 0
1
respuestaQuick Access bar capacity
One option that had occurred to me was to create a figure, as below) filled with uicontrol buttons which could serve the same pu...
1 día hace | 0
find sequence in a matrix
I=[0 1 0 1 1 1 0 0 0 1 1 1 0 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 0 0 1;1 1 0 1 0 1 0 0 0 1 0 1 0 0 1 1 1 0] k=3; [minv...
2 días hace | 0
Enviada
Customized text modification buttons for the Matlab Editor
A pair of functions enabling simple, programmatic modification of Matlab Editor text. These can be used to make customized butto...
3 días hace | 12 descargas |
how to determine the wavelengths of an fft of a non-dimensional sequence
Perhaps as follows? %Example N=100; t=linspace(0,2*pi,N+1); t(end)=[]; x1=sin(t) ; %Wavelength N=100 x2=sin(2*t) ; %Wavelen...
3 días hace | 1
Pregunta
Quick Access bar capacity
My Quick Access bar is filling up: What happens when I want to add more buttons than will fit on the top blue strip, even...
3 días hace | 2 respuestas | 0
2
respuestasIndex exceeds the number of array elements
Either testarray is shorter than you planned or sentsize(1) is larger than you planned. Specifically sentsize(1)+35 is exceedin...
6 días hace | 0
Obtain Pixel Shift from Registered Images
There's no reason you can't use the tform from imregtform to imwarp the original images, even if the registration was done on cr...
6 días hace | 0
Trouble using container with cell type for key and structure array for values..
Perhaps use a dictionary, instead of containers.Map? keys = compose("A0%.2d" , 1:15); values = struct('abc', num2cell(1:15));...
6 días hace | 1
How to prevent parfor from slowing down towards later iterations?
Is there a way to change this? I suspect not. Firstly, if you have reduction variables, the workers that aren't iterating aren'...
7 días hace | 0
How can I reduce the "method error" with my central-difference method, when estimating a Jacobian matrix of partial derivatives?
Try making the step size adaptive to the evaluation points. E.g. f=@(x) x.^3; %function g=@(x) 3*x.^2;%true derivative G=@(x...
8 días hace | 0
| aceptada
How can I draw a circular trend line in a heat map?
If the trend line is supposed to be elliptical, you can use gaussfitn, https://www.mathworks.com/matlabcentral/fileexchange/691...
8 días hace | 1
| aceptada
How do I add semi-colons to lines of MATLAB code automatically in MATLAB?
You can use favoriteForceSemicolons.m from this File Exchange download, https://www.mathworks.com/matlabcentral/fileexchange/18...
10 días hace | 0
Is there a way to suppress command outputs to command window?
As a partial solution, you can use favoriteForceSemicolons.m from this File Exchange download, https://www.mathworks.com/matlab...
10 días hace | 0
Keyboard shortcut to evaluate current line?
I have created this File Exchange submission, https://www.mathworks.com/matlabcentral/fileexchange/181000-customized-text-modif...
10 días hace | 1
Programmatically paste into the Matlab Editor
I have created this File Exchange submission, https://www.mathworks.com/matlabcentral/fileexchange/181000-customized-text-modif...
10 días hace | 1
| aceptada
How to save the proceesed image in the same size as input image
outputImage=imresize(outputImage,OutputSize=size(inputImage)); imwrite(outputImage , filename);
10 días hace | 0
| aceptada
coneprog 代码生成过程中报错：'secondordercone' not supported for code generation.
Upgrade to R2024b where it is supported, https://www.mathworks.com/help/releases/R2024b/optim/ug/coneprog.html#mw_9834fbc9-e577...
10 días hace | 0
| aceptada
How can we see yticks below zero as positive and keep labels updated when zooming in?
x=linspace(-1,1); plot(x,x.^3); yline(0); ax=gca; ax.YTickLabels = erase(ax.YTickLabels,'-');
12 días hace | 0
Matrix is generating one larger than it should be
Does it help to remove the +1 from this line? Or, perhaps the loop should run from n=1:Z. Otherwise the finalcolumn of q never ...
12 días hace | 0
How to expand a matrix and interpolate between values?
See retime, e.g., T=timetable(hours([1;2;3]),[1.1,5.6,3.2]', ... 'DimensionNames',{'Time','Degrees C'}, ... ...
12 días hace | 0
| aceptada
Extract consecutive elements from a vector in a sliding manner
A = [1 ;2 ;3 ;4 ;5 ;6]; Ar=reshape(A,2,[]); for i=1:size(Ar,2) A_slice=Ar(:,i) end
13 días hace | 1
| aceptada
Help me get this shape on the masks
This requires a File Exchange download, https://www.mathworks.com/matlabcentral/fileexchange/71226-tspsearch load BW dsk=@...
14 días hace | 1
| aceptada
What do you think of my numerical Jacobian, using the central-difference method?
I'm assuming rdots and rddots are symbolic functions, based on your previous posts and on the fact that you have concatenated th...
14 días hace | 0
| aceptada
Pregunta
Programmatically paste into the Matlab Editor
I have highlighted a selection of text in the Matlab editor. I would like to run a command, in the command window, that will rep...
15 días hace | 1 respuesta | 0
