Answered
How do I write an array to a binary file?
"binary file" means different things to different people. The *standardized* "binary" formats that inherently support recordi...

3 years ago | 0

Answered
why my code run in online matlab, and in app has an error?
It looks like a bug in the detectSpeech code for R2023a if you call detectSpeech with more than one parameter. That section of...

3 years ago | 0

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Answered
combine large number of image blocks from file sequentially
imagedir = '1'; dinfo = dir( fullfile(imagedir, '*.jpg')); filenames = fullfile({dinfo.folder}, {dinfo.name}); numfiles = n...

3 years ago | 0

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Answered
Can I change email address in my profile?
See https://www.mathworks.com/matlabcentral/profile/community_profile/edit

3 years ago | 0

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Answered
What are Your Thoughts on TMW Documentation Linking to the File Exchange
I have no problem with Mathworks documentation pointing to FEX contributions, even third-party FEX contributions. This may be b...

3 years ago | 1

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Index in position 1 is invalid. Array indices must be positive integers or logical values. Error in book1 (line 8) D(2i+1,1)=1;
In MATLAB, 2i is notation that means 2 times sqrt(-1) so 2i+1 is a complex number. Complex numbers cannot be used as indices. I...

3 years ago | 0

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Answered
acker(): "Error using sym/poly". Why?
acker() is a now-undocumented function in the Control Systems Toolbox, in a directory reserved for "obsolete" functions. In othe...

3 years ago | 1

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MATLAB error when run
You are asking to calculate and store data for 100 radial grid points for 100 samples per second for 2 complete years . 2 compl...

3 years ago | 0

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How can measure distance after threshold
First trim the white border off of the image. Then binarize and take the inverse of the image, so that the black become 1 and th...

3 years ago | 0

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How to avoid complex numbers out of Newton-Raphson?
Some of the issues are hidden because you are using vpa() in a number of places. When you take a numeric approximation to a sym...

3 years ago | 0

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Fill missing observations for a sensor reading.
I suggest you use table2timetable and then retime

3 years ago | 0

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Answered
Error in batch image processing: Index exceeds the number of array elements. Index must not exceed 0.
The error is being generated against line 26 of jullly13.m which you do not show us the source code for. You show us the source...

3 years ago | 0

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How to display a fprintf on designer panel (R2018b)?
The return value from fprintf is the number of bytes that have been written by fprintf(). fprintf() is strictly for sending data...

3 years ago | 0

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Answered
I get error when I try to test an agent trained on a PC( with GPU) on a second computer which has no GPU (Reinforcement Learning)
Your Training_Script1 is trying to load() a .mat file that has a gpuArray() object stored in it, but you are trying to do that o...

3 years ago | 0

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Cropping and saving images: "unable to perform assignment because the size of the left side is 825-by-1081 and the size of the right side is 450-by-601."
% specify folder with uncropped images projectdir = '/Users/greencrystal19/Documents/MATLAB/numframe'; savedir = '/Users/green...

3 years ago | 0

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Answered
Byte Size of Fixed Point numbers in Matlab
embedded.fi are *objects* that include control information about the representation and the attached behaviour (such as overflow...

3 years ago | 0

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Answered
How to expend 1 dim for array ?
MATLAB does not exactly ignore trailing dimension of 1, but thinking of it that way is "close enough" for most work. Every arra...

3 years ago | 2

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Answered
¿Is it posible to save a .bmp image with resolution (dpi)?
BMP images do not have any defined metadata, other than the image size and encoding information, and possibly an icc profile. T...

3 years ago | 0

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Where can I get the License Agreement of MATLAB and Simulink Student Suite License?
license_filename = fullfile(matlabroot, 'license_agreement.txt'); edit(license_filename) If you would be getting academic cr...

3 years ago | 1

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Index in position 2 exceeds array bounds
f1 = matlabFunction(D2ynum,"Vars",{x, [p Dp q Dq D2q]}) 5 variables bunched together, so f1 is going to expect to be able to in...

3 years ago | 0

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How to remove frame appear as a result of thresholding
Your image has a white border that you need to trim out. bb1 = imread('bb1.jpg'); imshow(bb1); title('original'); set(gca, 'v...

3 years ago | 0

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Error using eps CLASSNAME argument must be a class that supports EPS, such as 'double' or 'single'.
decic does not permit any of its inputs to be symbolic, and the ode function you pass to it cannot return symbolic. You can d...

3 years ago | 0

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Like to have input user command for cases
switch and case

3 years ago | 0

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write table on screen
Create a cell array and use writecell

3 years ago | 0

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domain error. to compute complex results from real x, use 'log(complex(x))'
At some point your x becomes negative. MATLAB proper would handle the situation by creating a complex result, but Simulink gener...

3 years ago | 1

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Acceleration of DFT with Apple Silicon
You would need to create mex code that used the Apple Metal2 interface to run the calculation on the gpu. MATLAB does not pro...

3 years ago | 1

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True Vector graphics with OpenGL?
If I recall correctly, exportfig from the file exchange can produce true vector svg files. I do not know whether exportgraphi...

3 years ago | 0

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Updater Shows New Version of Matlab 2023a, However, Clicking the Updater Button Doesn't Do Anything
The most common cause of this problem is the case where Mathworks releases an update, but then withdraws the update due to techn...

3 years ago | 0

Answered
Shading area between two functions
ymax = max(d1, d2); ymin = min(d1, d2); x = h(2:end); xfill = [x(:); flipud(x(:))]; yfill = [ymax(:); flipud(ymin(:))]; f...

3 years ago | 0

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Answered
matlab code for mean_squared_error
oob_mse = rmse(predict(rf_classifier, X_train), y_train); ... as I discussed in one of your other postings.

3 years ago | 0

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