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How to add two columns based on conditions
It is easiest to use 'logical indexing' for this. Try this -- intrun = [1 0 1 4; 2 0 1 5; 1 ...

4 meses hace | 0

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Compare two row and select appropriate data
I believe you want the minimum of the two columns. Try this -- Data = array2table(randi(9, 10, 2), VariableNames=["A","B"])...

4 meses hace | 0

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Is Helvetica available on every MATLAB platform?
On my Ubuntu 24.04 installation (latest updates), using yur example code, 'Helvetica' is the 12th entry in 'k'. Proportional ...

4 meses hace | 0

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Scatter point plot into plot3d or any surface
It would help to have your data. It might not be necessary to do any interpolation if you only want to use those vectors. Ju...

4 meses hace | 1

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I have a code but am unable to use if conditions with matrix value
I cannot understand what you want help with. If you want to avoid using values that equal 0, one way is to use 'logical index...

4 meses hace | 0

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Extracting Respiratory Cycle Duration from RPM Waveform Stored in DICOM Files
Part of the problem is that your instrument is 'saturating', such that the amplitude of the signal exceeds the ability of the in...

4 meses hace | 0

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how to know the version of simulink ?
Execute the ver command. ver .

4 meses hace | 0

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How to correctly find the solution of a system of equations containing trigonometric functions
It would be difficult to plot this since there are so many variables, and it is not obvious (to me, at least) what 1 or 2 variab...

4 meses hace | 0

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Listing values for a specific harmonic line from waterfall figure
By 'harmonic line', I assume you intend frequency, the x-axis coordinate in each plot. A waterfall plot is a specific depiction...

4 meses hace | 0

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Fatal error starting Matlab 1. time in Ubuntu 25.04
From the Platform Roadmap documentation, R2023a only supports Ubuntu 22.04 LTS. The 25.04 release is not listed for any MATLAB ...

4 meses hace | 0

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How do I use readcell and keep leading spaces within cells
There may be other ways of doing this (and I am not certain that it will work with your Excel fiile), however if you define whit...

4 meses hace | 2

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How do I change column headers in my table
If your immediate problem is naming the variables, perhaps -- Int_force = randn(6,6,28); Force = repmat(["Axial Force";"Shea...

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2D acoustic wave equation with a Perfectly Matched Layer
I'm not certains what this code is supposed to do or the result it's supposed to produce. The problems were that the diff cal...

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Cross-Coupled System Identification
I am not entirely certain that I understand what you want to do. If you have the input and output data, you have a system mod...

4 meses hace | 0

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create a code for butterworth 4th order bandpass filter without Signal Processing Toolbox
A relatively straightforward presentation stats with (for a fourth-order prototype lowpass filter) -- where is a normalisin...

4 meses hace | 1

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Last tick labels dissapear when plotting with axes at origin (0,0)
After experimenting with this a bit, using: axis('padded') might be the best option. x = linspace(-20, 20, 50); y = tanh(...

4 meses hace | 0

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How do I get bold formatted subscript mathematical expressions in MATLAB using LaTeX?
Using g_{\it\textbf{R}} works here using tthe LaTeX interpreter ( button in the top toolbar) -- The 'R' actually is sub...

4 meses hace | 0

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How to surfc or surf a .mat file
The error is clear -- imshow(imread('64C9C921-689D-4180-8EAD-7EE1126E5382.png')) At least one of your data are vectors (it wo...

4 meses hace | 0

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Dimensioning a field within a structure array for reading data
It might be worthwhile to use the readcell function to read it. After that, the cell2struct function could work to create a s...

5 meses hace | 0

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Unrecognized function or variable 'fetchmulti'.
According to the documentation, fetchmulti was introduced in R2024b, and is part of the Database Toolbox. If you were using i...

5 meses hace | 0

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MATLAB Suddenly Stopped Being Able to Plot
First, see if the path got corrupted. Run these: restoredefaultpath rehash toolboxcache from a script or your Command W...

5 meses hace | 0

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How can I rectify the issue of figure not displaying curve the right way?
I am not exactly certain what the problem is (not enough information), however increasing the LineWidth could be a solution, fol...

5 meses hace | 0

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fill function sometimes working and sometimes not working, why?
I generally use patch rather than fill because I understand patch and I have more control over what it does. I'm not certain ...

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Plot not showing the desired markers and does not match the legend
It is difficult for me to understand what you're doing, although I believe this is close to what you want -- % ----- Experimen...

5 meses hace | 0

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Whis my root locus plot showing me a blank figure?
It works here and in MATLAB Online for me -- sys = tf([2 5 1],[1 2 3]); rlocus(sys) The problem may be your browser. Try ...

5 meses hace | 0

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Range FFT Magnitude Too High – Help Needed to Get Proper Y-Axis Magnitude
@A -- With respect to your earlier Comment, a FIR filter is not the best choice if you need only one filter. I would suggest ...

5 meses hace | 0

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Help with Plotting the Envelope of a Scatter Plot in MATLAB
The boundary function or related functions can probably help with this. Since the data appear to have stepwise y-values, anot...

5 meses hace | 1

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Is it possible to add a secondary y axis while using the stackedplot function?
Apparently not. Any provision for creating a second y-axis is apparently not available, even when attempting to 'force' it (t...

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curve fitting toolbox is showing installed but when i try to use in my apps pane it display 'no apps installed'. i dont know what to do please help.
First, run these from a script or your Command Window: restoredefaultpath rehash toolboxcache If that does not solve your ...

5 meses hace | 0

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Difference between integral and cumtrapz.
They produce the same result if you let them. Try something like this -- x = [-10:0.01:10]'; fx = @(x) x.^2; for k = 1:nu...

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